Reciprocating action
[机] 往复动作
🧩 词语组成解析
[医] 交互的, 往复的
action
['ækʃən]
n. 行动，活动;功能，作用;手段;[法]诉讼;
🗣️ 情景例句
He's such a workaholic that he doesn't know how to spend his leisure time.
他是个工作狂，以至于不懂得如何打发他的空闲时间。
Hope deferred makes the heart sick.
希望迟迟未实现，使人心烦意撩乱。
I'm OK. Sam, what are you going to do tomorrow?
我也很好。山姆，你打算明天做什么？