Their job begins if you happen to cut yourself, for example, or you get a wound.

比如当你不小心割伤自己,或者受了其它外伤的时候

耶鲁公开课 - 生物医学工程探索课程节选

I think it's a matter of, as a cyclist, being cautious, but also not being afraid.

我想作为一个骑自行车的人，这是自己小心的问题，但是也不必害怕。

我使用自行车 - SpeakingMax英语口语达人

Where you've got a couple of wishes and you aren't careful about how exactly you state the wish And so you get what you want ? but it ends up being a nightmare,right?

给你几个可以实现的愿望,但是不小心没说对愿望,你得到了自己想要的,却发现那是个噩梦对不对？

耶鲁公开课 - 死亡课程节选

He also did it from the El Camino Community College Library because he thought, I'll be careful, I won't issue this fake press release on my own computer because they might be able to track me back to my own computer.

而且他使用,埃尔卡米诺学院图书馆的电脑进行发布,因为他想,我要小心为妙,不能用自己的电脑散布这条消息,监管机构很可能会追踪到我的电脑上

耶鲁公开课 - 金融市场课程节选