tailspin ['teilspin]

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1.急劇下滑（名詞，非正式用語）；

2.飛機快速下墜（名詞）

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1. (noun,INFORMAL) A period of severe decline that will lead to failure.

2. (noun) An airplane’s rapid, spiral descent.

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EXAMPLE 1: When the founder of our company died and most of our managers took jobs with our competitors, our business went into a tailspin.

我們公司的創(chuàng)始人去世，大部分經(jīng)理轉(zhuǎn)投競爭對手，我們的業(yè)務(wù)一落千丈。

EXAMPLE 2: When its rudder broke, the small airplane went into a tailspin and crashed.

這架小飛機的方向舵斷了，它迅速墜毀。

to wrap something up

收尾

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Informal expression meaning to finish the remaining aspects of something, such as a task, so it is fully completed.

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EXAMPLE: The long project is nearly finished and I think we can wrap it up next week.

這個長期項目基本完成，我想下周我們就可以收尾了。