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
Oh, it's going to be all right.
不会有问题了。
I wish I had half the money he does.
但愿我有他一半的钱。
Summer holidays will begin next month.What are you going to do?
下个月暑假就开始了。你有什么打算？