Switchgear
n. 开关齿轮
✅ 同义词
🗣️ 情景例句
Oh, hi.
噢 嗨。
I'm glad to hear that.
听到这消息我很高兴。
Yes. It sounded like a train that was going under my house.
是的。这响声听起来像是一列火车在从我的房子下面驶过。