It's half past four. Let's go!

现在是四点半。我们走吧！

Mia sees that it is half past four and time to go.

米娅看到现在是四点半，该走了。

I get home from school at half past four and do my homework.

我四点半放学回家并做作业。

We usually have tea at half-past four.

我们一般在四点半喝下午茶。

At half past four, he reached the Schuylkill River.

四点半时，他飞到了斯古吉尔河。

And the party is going to begin at half past four in the afternoon.

聚会下午四点半开始.

This was the state which the shepherd idyl, begun at five o'clock in the morning, had reached at half-past four in the afternoon.

这就是从早晨五点开始的那次郊游到了下午四点半钟时的情形。