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
and he made the weekend very easy for us to enjoy.
使得我们的周末过得非常轻松愉快。
The car is out of order.
这车子坏了。
The dog's in the garden, too.It's running across the grass.
狗也在花园里。它正在草地上跑，