1.lose contact with 與…失去聯系
例句：Unfortunately, evolution of tires and rims has made these measurements lose contact with reality.
不幸的是，外胎和輪圈的發展使這種測量方法越發與實際脫離。
2.lose face 失面子,丟臉
例句：If they don't want to lose face, the gifts should not be too cheap.
假如自己不想丟臉，那送出的禮物份量可不能太輕。
3.lose heart 灰心,泄氣
例句：When you fail, you should never lose heart.
當你失敗時，你不應喪失信心。
4.lose one's head 被砍頭，喪命,慌亂,失去自制
例句：Don't lose your head.
別驚慌失措。
5.lose one's train of thought 被打斷思路，忘記
例句：When you interrupted me, you made me lose my train of thought.
你打斷了我的思考，我 忘記 我在想什么了。
6.lose track of 不能跟上…的進展，失去與… 的聯系,看不清，算不淸
例句：When you are doing it, do you lose track of time?
是否每當你做這件事情的時候就會忽略了時間？