Backgear
[机] 后列齿轮
🗣️ 情景例句
You were right and I was wrong. I apologize.
你是对的， 我错了。 我道歉。
Hey, you break it up!
喂，住手啦！
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。