back-of-the-envelope
US
・UK
A1 初級
adj.形容詞粗略估計的
The engineer made a back-of-the-envelope calculation to estimate the project's cost.
adj.形容詞簡略分析的
Before committing to the investment, they did a back-of-the-envelope analysis to assess potential returns.
n. (c./u.)名詞 (可數/不可數)草算
We only need a back-of-the-envelope estimate to decide if the project is feasible.
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34:25
- back of the envelope calculation. If I have a sound coming in from the left it's a 500 microsecond
包絡計算的背面。如果我有一個聲音從左邊進來，它'是一個500微秒的
內特-西爾弗：成功的冒險者都有這 3 個特徵 | Big Think+ (Nate Silver: Successful risk-takers share these 3 traits | Big Think+)
05:08
- Well, you have a lot of frickin' practice, because poker players play thousands and thousands of hands, but it's a very necessary skill to be explicit about this kind of thing, even if it's back of the envelope to get there, right?
好吧，你有很多該死的練習，因為撲克玩家玩了成千上萬手牌，但明確這種事情是一項非常必要的技能，即使是在信封后面達到目的，對嗎？
如果把維基百科都列印出來，有可能嗎？ (What if you tried to print Wikipedia?)
02:57
- Using Rob Matthews' book as a starting point, I did my own back-of-the-envelope estimate for the size of the current English Wikipedia, and based on the average length of featured articles versus all articles, I came up with an estimate of 300 cubic meters for a printout of the whole thing.
以羅布-馬修斯的書為起點，我自己對當前英文維基百科的規模進行了反向估算，根據特色文章的平均長度與所有文章的平均長度，我估算出整個維基百科的打印件為 300 立方米。
「先買後付」聽起來很誘人，但背後的風險你真的有了解嗎？ (How Phantom Debt Is Haunting American Consumers)
11:08
- Our back-of-the-envelope estimates put the BNPL market at somewhere in the neighborhood of $50 billion.
根據我們的初步估算，BNPL 市場規模約為 500 億美元。
如果所有的雲都永遠消失了呢？ (What If All The Clouds Disappeared Forever?)
04:04
- did offer some quick back-of-the-envelope calculations.
確實提供了一些快速的包絡計算。
特朗普暫停對加拿大和墨西哥徵收關稅以換取加強邊境安全 (Trump pauses tariffs on Canada and Mexico in exchange for ramped up border security)
07:48
- I mean, you've got Trump tariffs, if they all go into effect, anywhere from $800 to $1,200 a year are some of the back of the envelope forecast that so many of these economists have been doing, Ryan.
我的意思是，如果特朗普的關稅全部生效，那麼每年的收入將從800美元到1200美元不等，這是許多經濟學家的預測，瑞安。
