Eu
[化] 富集铀; 浓缩铀\\n[医] 铕(63号元素)
✅ 同义词
🗣️ 情景例句
and where do they report?
他们去哪儿报到？
A man apt to promise is apt to forget.
轻诺者易忘。
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，