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
I'm going to show him the photos on Monday morning.
我要在星期一早晨给他看这些照片。
Would you please hold the door open for me?
请您为我打开门？
This ability was first noticed by her father.
是她父亲首先发现她这一功能的。