一列

yī liè xué sheng

一列学生

a row of students

tā men pái chéng yī liè

他们排成一列。

They lined up.

zhè chǎng shì gù shè jí yī liè yōng jǐ de tōng qín huǒ chē

这场事故涉及一列拥挤的通勤火车。

The accident involved a crowded commuter train.