If you injury yourself with a nail you should be careful of careless talk and sharp words.

如果你伤害自己与指甲，您应该谨慎小心对话和尖锐的话。

youdao

Originally when you love a person, no matter how careless you are, you will be careful and considerate.

原来当你喜欢上一个人的时候，无论你是多么粗心，你都会变得细心体贴。

youdao

And, I will spend some time on my math. I always be careless on the math exam. I want to be careful!

并且我将花费一些时间在数学上，我总是在数学考试上粗心，我很想小心点而已！

youdao