Spontaneous motion
[电] 自发运动
🧩 词语组成解析
motion
['məuʃən]
n. 运动;手势;动机，意向;请求;
vt. 打手势;向某人点头或摇头示意;打手势要求[指示];
vi. 运动;打手势;
🗣️ 情景例句
Robbie pulled a boy out of the water.
Robbie从水中救出一个孩子。
It is a small flock that has not a black sheep.
家家难免有败类。
It took me over half an hour to get rid of him.
我花了半个多小时才摆脱了他的纠缠。