flapping

[flæpiŋ]

n. 摇摆运动, 拍打
动词flap的现在分词形式

例句与用法：

The movement or sound of repeated flapping.

啪嗒啪嗒的动作，吧嗒吧嗒声反复拍击的动作或声音

The sails were flapping gently in the wind.

船帆随风摆动。

The curtains were flapping at the open window.

窗帘在敞开的窗户前摆动。