介绍:

A sea of people 人山人海

There's always a sea of people everywhere during the Spring Festival travel rush.
春运时节，不论在哪都是人山人海。

Packed 拥挤的，人多的
The train was so packed that I could hardly move.
火车上太挤了，我几乎都走不动。

Rammed (英式) 拥挤的，人多的
Every time when I go to a rammed place, I'll go out to change my mind.
每次到了一个人多的场所，我都会转身离开。

hardly breathing space 很拥挤
I was at the central bus station and there was hardly breathing space.
昨天我在中心车站，太挤了。