back-of-the-envelope

中文含义:草率估算、粗略计算

英语词性:adjective

美式发音: [bæk ʌv ði ˈɑnvəˌləʊp]

同义词:rough, approximate, ballpark

易混淆单词:back-of-the-hand(手背)、back-to-back(背靠背)

例句:

1. When asked how he arrived at his estimates, the CEO replied that he had simply done some back-of-the-envelope calculations.

(当被问及如何得出他的估算数字时,CEO回答道他仅仅进行了一些草率估算。)

2. We don’t have time to do a detailed analysis, so we’ll just do a back-of-the-envelope calculation to get a rough idea of the numbers.

(我们没有时间进行详细的分析,因此我们会做一个粗略的草率估算来了解大致数字。)