You did not know the use of number one, the lettering on a makeup jar.

你不知道一號的用途，不知道化妝瓶上的字。

If you have ever bought a bottle of face makeup, you might have noticed that there's a mark on the bottle that could read six M 12 M 18 M or 24 M.

如果你買過一瓶化妝品，你可能會注意到瓶子上有一個標記，可能寫著 6 M 12 M 18 M 或 24 M。

These are not markings that are needed in the factory.

這些標記並非工廠所需的標記。

They're actually the expiration dates.

它們實際上是有效期。

If you use face makeup for too long, it can result in a break out a rash or an infection.

如果臉部化妝時間過長，可能會導致皮疹或感染。

These marks are to let you know when it's time to toss your old makeup and replace it with new.

這些痕跡會讓你知道什麼時候該扔掉舊化妝品，換上新的。

Number two, the small hole between the iphone flash and the camera.

第二，iPhone 閃光燈和攝像頭之間的小孔。

If you have one of the newer versions of the iphone, you'll notice that there is a tiny black.in between the camera's back camera and the flash that's not there for show and it's not a mistake.

如果你使用的是較新版本的 iPhone，你會發現在攝像頭的後置攝像頭和閃光燈之間有一個小黑點，這不是擺設，也不是錯誤。

It's actually a tiny microphone, Apple added this to the newer iphones so that you can get better sound quality when you're taking videos.

它實際上是一個微型麥克風，蘋果公司在新款 iPhone 中加入了這個麥克風，以便在拍攝視頻時獲得更好的音質。

Number three, the lines on an Exacto knife.

第三，埃佳圖刀上的線條。

If you've ever used an Exacto knife, you might have noticed the horizontal lines that run up and down the blade.

如果你用過埃佳圖小刀，你可能會注意到刀刃上下延伸的水平線。

These are there to extend the life of the razor.

這些都是為了延長刮鬚刀的使用壽命。

When the razor begins to get dull, you can just snap it off at one of those lines and you'll have a fresh new razor to work with and that can be done up to 10 times depending on the knife that you have.

當刮鬚刀開始變鈍時，你只需在其中一條線上把它折斷，就會有一把嶄新的刮鬚刀供你使用，根據你所使用的刀，這樣做最多可以進行 10 次。

Number four, the tabs on the ends of an aluminum foil box, there is nothing worse than needing aluminum foil only to have it fall out of the box and roll out onto the ground.

第四，鋁箔盒兩端的標籤，沒有什麼比需要鋁箔卻從盒子裡掉出來滾到地上更糟糕的了。

What you might not know is that there are two tabs on each side of the box that you're supposed to push in.

你可能不知道的是，盒子的兩側各有兩個卡口，你應該把它們按進去。

When they're pushed in, they will go right into the holes in the tube, holding the foil in place when you use it.

推入後，它們會直接進入管子的孔中，在使用時將鋁箔固定到位。

Number five, the extra piece of fabric that comes with new clothes.

第五，新衣服上多了一塊布料。

If you've ever bought a new shirt or a new pair of pants that came with a small piece of fabric in the bag, you might have thought that it was a patch.

如果你買過一件新襯衫或一條新褲子，袋子裡有一小塊布料，你可能會以為那是補丁。

If you were to rip your clothing, you'd have a small piece of material to patch the hole with.

如果衣服破了，你可以用一小塊材料來修補破洞。

Well, that's not the real reason.

其實，這並不是真正的原因。

The clothing manufacturers include this piece of fabric.

服裝生產商包括這塊布料。

It's actually so you can put it in the washing machine so that you'll see what the washer and the soap will do to your clothing.

實際上，這樣你就可以把它放進洗衣機裡，看看洗衣機和肥皂會對衣服做什麼。

So that you don't end up ruining it.

這樣你就不會毀了它。

It actually is just a test piece of fabric.

實際上，這只是一塊測試布料。

The button that comes with the fabric that is often included just in case you lose one number six, the extra holes in converse sneakers.

布料上附帶的鈕釦，通常是為了以防萬一掉了一顆；六號，匡威運動鞋上多出來的洞。

Many people who wear converse sneakers know that there are two extra holes on the sides of the feet.

很多穿過匡威運動鞋的人都知道，腳的兩側多了兩個洞。

They're not there for decoration.

它們不是用來裝飾的。

Like most people think some people think that they are there to lace the sneaker up tighter and offer more support.

和大多數人的想法一樣，有些人認為鞋帶的作用是把球鞋系得更緊，提供更多支撐。

Well, both of those theories sound plausible but they are both wrong.

這兩種理論聽起來都有道理，但都是錯誤的。

The holes are actually there for added ventilation.

這些小孔實際上是為了增加通風。

Since many styles of converse are high tops, the more ventilation, the better number seven, the hole at the end of a ruler.

因為很多款式的匡威都是高幫，所以越透氣越好，七號，也就是尺子末端的孔。

Many people think that the holes at the end of the ruler are there to help you make a perfect circle.

很多人認為，尺子末端的孔是用來幫助您畫出完美的圓的。

Well, yeah, you can use it for that.

是的，你可以用它來做這個。

The hole is small.

洞很小。

So the explanation is kind of silly if you think about it, there aren't too many people who would need to draw a circle that tiny the hole is actually there so that you can have a way to hang the ruler up rather than trying to fit it inside a desk drawer.

是以，如果你仔細想想，這種解釋就有點傻了，沒有多少人會需要畫一個圓圈，把孔畫得很小，這樣你就可以把尺子掛起來，而不是把它放在桌子的抽屜裡。

Number eight, the hole at the end of a panhandle of all the things you did not know the use of this could be the most useful.

第八，在所有你不知道用途的東西中，這可能是最有用的。

Most sauce pans and skillets have a hole at the end of the handle, most people think the hole is there so that they can hang their pan on the wall and they are half right about that.

大多數平底鍋和平底煎鍋的手柄末端都有一個孔，大多數人認為這個孔是用來把平底鍋掛在牆上的。

The hole at the end of the handle is a great way to hang a pan.

手柄末端的孔是懸掛平底鍋的好方法。

If that's what you choose to do with it.

如果這是你的選擇的話。

The other purpose of the hole is to put a spoon handle through.

這個孔的另一個作用是用來穿勺子柄。

If you're cooking and you stir your food, whatever your cooking is going to get all over the counter.

如果你在做飯時攪拌食物，那麼無論你做什麼，都會弄得到處都是。

Unless you rinse off that spoon every time you need to set it down.

除非你每次都把勺子沖洗乾淨。

But if you put the spoon through that hole, it will hover over the pan and that would prevent anything from dripping.

但如果把勺子穿過那個洞，勺子就會懸停在平底鍋上，這樣就不會滴水了。

Number nine, the arrow on the side of the gas gauge icon, many vehicles will have a small arrow on the side of the gas gauge icon, the icons there to let the driver know which side the gas tank is on, whichever way the arrow is pointing.

第九，油量表圖標邊上的箭頭，很多車輛的油量表圖標邊上都會有一個小箭頭，這個圖標的作用是讓駕駛員知道油箱在哪一邊，箭頭指向哪一邊。

That's the side the gas gauge is on.

油表就在這一側。

Since most drivers know which side the tank is on.

因為大多數司機都知道油箱在哪一邊。

This little arrow is more helpful to people who are borrowing a car number 10 p.m. Palm and backpack loop.

這個小箭頭對晚上 10 點 Palm 和揹包圈借車號的人更有幫助。

The pom pom on a hat goes all the way back to the 19 hundreds.

帽子上的絨球可以追溯到 1900 年。

When sailors were living aboard ships, sailors would wear the hats.

當水手們住在船上時，水手們會戴上這種帽子。

And if the pom pom scraped the ceiling, they'd know that they needed to duck and they would not scrape their head the loop on a pocket of a backpack that's called a hauling loop.

如果絨球刮到了天花板，他們就會知道需要躲避，而不會刮到自己的頭。

They come in handy with people out in the wilderness.

在野外，它們對人們非常有用。

However, there's really no need to put them on a kid's backpack.

不過，真的沒必要把它們放在孩子的書包上。

There aren't too many kids out there who are going to be hauling heavy items to school.

沒有多少孩子會拖著沉重的物品上學。

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