around the bend

adj. 有精神病的, 疯狂的

例句与用法：

I'll send someone to show you around.

我派人带你到周围转转。

It'll be finished around Christmas.

这事将在圣诞节前後完成。

He turned around as he heard a noise behind him.

他听到身后有响声，便转过身来。

I will visit you around Christmas.

我将在圣诞节前后去拜访你。

He looked around but could see nobody.

他四处望了一下，看不到什么人。

My sister is around your age.

我妹妹和你年龄相仿。