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
I didn't have that when Richard and Susan were born.
在Richard和Susan出生时我可没有人帮忙。
Don't you get it?
你懂不懂啊？
He was called Bapu, meaning father - because he was the father of the Indian nation of the twentieth century.
他被人们称为巴普，意国是父亲--因为他是20世纪的印度民族之父。