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
I'm thinking about it....
我正在考虑中……
What is worth doing at all is worth doing well.
事既值得做，就把事做好。
But I didn't see much during the flight because there was too much cloud.
但我在飞行途中并没有看到什么东西，因为云层很厚。