Make sure to wear a coat; it's freezing today.

确保穿上外套，今天极冷。

You should wear a coat, otherwhile you'll catch a cold.

你应该穿上外套，否则你会感冒。

If you don't wear a coat, you will catch a cold.

如果你不穿外套，你会感冒的。

He sensibly chose to wear a coat on the cold day.

他明智地选择在寒冷的日子里穿上外套。

If you don't wear a coat, you will freeze to death.

如果你不穿外套，你会冻死。

I know a lot of pharmacists wear a coat because it makes you look more professional.

我知道有好些药剂师喜欢穿大褂，就为了显得专业。

I was really not prepared for the cold weather and having to wear a coat most every place that I went.

对于这里阴冷的冬天，我还没有充分的准备，所以每到一个地方都要穿一件厚厚的外套。