我警告你，在这里游泳是很危险的。

I warn you that it is dangerous to swim here.

youdao

万一有甚么事，你一个人在这里，很危险的。

Should something happen and you are all alone here, it can be very dangerous.

youdao

万一有甚么事，你一个人在这里，很危险的。

Should something happen and you are all alone here, it can be very dangerous.

youdao