✅ 同义词
🗣️ 情景例句
Why are you in such a good mood?
为什么你的心情那么好？
I would like to write to the employment agency for a job.
我要写信给职业介绍所代我找一份工作。
If explosives are used, vibrations will cause the roof of the mine to collapse.
如果用炸药爆破，震动会引起矿顶塌落。