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
You took the words right out of my mouth.
我的话让你先说出来了。
Please make an appointment with my secretary.
请跟我秘书定个见面时间。
Then the teacher says, Stop and put your hands in front of you now.
“现在停止，并把手放在面前。”