Tranquillise
vt.vi. (使)平静, (使)安定, (使)镇静, (使)安静
✅ 同义词
🗣️ 情景例句
When you're ready to get off, remember to press the button near your seat.
当你要下车时，记得按你座位旁的按钮。
So I've heard.
我听说是这样。
What are those?
那些是什么？