30分钟用英语怎么表达

Thirty minutes later, Roger is begging for mercy.

三十分钟后，罗杰开始求饶了。

When I woke up, I cried for about thirty minutes.

我醒后哭了得有三十分钟。

If only I had gotten up thirty minutes earlier.

我要是早半小时起床就好了。