Wingbeats
(wingbeat 的复数) n. 飞行时翅膀的拍击
🗣️ 情景例句
Why don't we take a walk down to the river?
我们何不一路散步到河边去呢？
What are you talking about?
你正在讲什么？
who rolled balls down inclined planes,
他就是那个使球体沿斜面向下滚动，