✅ 同义词
🗣️ 情景例句
Scared? Why?
紧张？ 为什么？
He plays violin just for enjoyment.
他拉小提琴只是为了自娱自乐。
When the instrument is situated at more than 700 miles from the earthquake centre,
如果把这种仪器安装在距震源700多英里远的地方，