Nutual action
[机] 互相作用
🧩 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
Where is she today?
她如今在哪？
The student felt very shy as he stood in front of the class.
那个学生站在大家的跟前时，感到非常难为情。
Old tunes are sweetest and old friends are surest.
老调最甜美，老友最可靠。