人山人海

rén shān rén hǎi

a huge crowd

Character by character

人rén
people

山shān
mountain

人rén
people

海hǎi
sea

春运期间，火车站里人山人海。

During the travel rush the station is a sea of people.

Tone: neutral.

Learn this in Lesson 3 · HSK 5: 高铁与春运 (High-speed rail and the New Year rush)

A dialogue, a reading, word cards with audio and a drill that uses it, in Learn Chinese with Bao. This lesson is free.