Action principle
[化] 作用原理
🧩 词语组成解析
action
['ækʃən]
n. 行动，活动;功能，作用;手段;[法]诉讼;
🗣️ 情景例句
No.
没有。
You'd better go and see a doctor about that.
关于那个毛病，你最好去看医生。
So I drove back to the town and began to retrace the route, taking frequent glances at the map.
于是我驾车返回小镇，重新按路线行驶。