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Hardness can be thought of as the ability to resist a crack from starting, while toughness is what stops the crack from spreading.

硬度可用來預防裂縫產生，而韌性則可防止裂縫擴散。

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We're going to have to face, for possibly a very long time, a big drop in salary. We might have to move back home, it will be hard to sound impressive at parties about what we're doing, and we'll be beginning again close to zero.

我們可能得面對長時間降薪，我們可能得搬回家住，在聚會中逞不了威風，而人生也幾乎再度歸零。

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On TV, he noticed how a sea otter's fur had become saturated with oil and thought if that's what oil would do to an otter's fur, then the same must be true for human hair.

他在電視上看到一隻毛上沾滿燃油的水獺，就聯想到，如果燃油會附著在水獺的毛上，那一定也會附著在人類的毛髮上。

影片字幕

Hardness can be thought of as the ability to resist a crack from starting, while toughness is what stops the crack from spreading.

硬度可用來預防裂縫產生，而韌性則可防止裂縫擴散。

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We're going to have to face, for possibly a very long time, a big drop in salary. We might have to move back home, it will be hard to sound impressive at parties about what we're doing, and we'll be beginning again close to zero.

我們可能得面對長時間降薪，我們可能得搬回家住，在聚會中逞不了威風，而人生也幾乎再度歸零。

影片字幕

On TV, he noticed how a sea otter's fur had become saturated with oil and thought if that's what oil would do to an otter's fur, then the same must be true for human hair.

他在電視上看到一隻毛上沾滿燃油的水獺，就聯想到，如果燃油會附著在水獺的毛上，那一定也會附著在人類的毛髮上。