lose out

To fail to achieve or receive an expected gain.

输掉，失败：未能达到或收到预定的目的

have nothing to lose

be in a situation that is so bad that even if an action or undertaking is unsuccessful it cannot make it any worse

一无所有

lose face

come to be less highly respected

丢面子

he was trying to work out how he could go back home without losing face.

他在设法找出不失面子回家的办法。

lose heart

become discouraged

灰心，气馁

lose one's heart to

lose height

(of an aircraft) descend to a lower level in flight

（飞机）降低飞行高度

lose one's mind (或 one's marbles)

(informal)go insane

(非正式)失去理智

lose sleep

[usu. with negative]worry about something

担心，忧虑

no one is losing any sleep over what he thinks of us.

没人在意他怎样看我们。

lose one's (或 the way)

become lost; fail to reach one's destination

迷路

you can't lose

used to express the conviction that someone must inevitably profit from an action or undertaking

包赚，包你得益

we're offering them for only ￡2.50—you can't lose!.

我们以 2.5英镑的价格提供商品，包你得益！。

lose out on

To miss (an opportunity, for example).

错过（机会）

lose time

To operate too slowly. Used of a timepiece.

（钟表）走慢：运转得太慢。用于计时器

To delay advancement.

延误进展