gesture是可数名词，复数gestures

例句

1.

He made a rude gesture at the driver of the other car.

他向另外那辆汽车的司机做了个粗野的手势。

2.

They communicated entirely by gesture.

他们完全用手势交流。

3.

He gestured that it was time to go.

他示意该走了。