Oscillating engine
[机] 摆动引擎
🧩 词语组成解析
[计] 振荡的
engine
['endʒin]
n. 发动机，引擎;工具;火车头;机车;
vt. 给…安装发动机;
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
She hates boxing.
她讨厌拳击。
Let's not waste our time.
咱们别浪费时间了。