level

Use a ruler to check if the picture frame on the wall is level.

(Chinese) 用尺子检查墙上的画框是否挂平了。

The football pitch must be perfectly level before the international match begins.

(Chinese) 国际比赛开始前，足球场必须完全平整。

The water level in the river rose quickly after the heavy rain.

(Chinese) 大雨过后，河水的水位迅速上升。

Students must reach a high level of English to study at this university.

(Chinese) 学生必须达到较高的英语水平才能在这所大学学习。