If possible keep a spare pair of glasses accessible in case your main pair is broken or lost.

如有可能留一副备用眼镜以防你常用的那副打碎或丢失。

《柯林斯英汉双解大词典》

When his diary was finally printed years after his death, much of it had been destroyed or lost.

在他死后数年，当他的日记终于被打印出来时，大部分已经被毁或丢失了。

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Note that cheques take longer to clear in France than in Britain, and can only be stopped if stolen or lost.

请注意，支票在法国清算的时间比在英国要长，而且只有在被盗或丢失时才能被停用。

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About thirteen million hectares of forest were cut down or lost through natural causes each year in the last ten years.

VOA: special.2010.04.06

So when we talk about formal charge, basically formal charge is the measure of the extent to which an individual atom within your molecule has either gained or lost an electron.

说到形式电荷，基本上形式电荷就是,单个原子在形成分子之后,是得到了电子还是失去了电子的一种量度。

麻省理工公开课 - 化学原理课程节选

We still keep finding our presidential elections won or lost in the South.

我们知道南方在总统选举中,有举足轻重的作用

耶鲁公开课 - 美国内战与重建课程节选

Up into space where most likely many future battles will be won or lost.

CENTERFORSECURITYPOLICY: Giving Saddam Space

Years later when cash was more plentiful we never forgot our roots or lost our focus.

FORBES: Fathers and Sons

But APEC's potential will be diminished or lost because the agenda will become too diffuse.

CNN: The End of APEC?