Changement
n. 换向机构；转换设备
🗣️ 情景例句
A friend in need is a friend indeed.
患难朋友才是真正的朋友。
A bird may be known by its song.
什么鸟唱什么歌。
An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit,
穿过深水的海浪使水面上的一个微粒按照一种近乎圆形的轨道移动，