Eu
[化] 富集铀; 浓缩铀\\n[医] 铕(63号元素)
✅ 同义词
🗣️ 情景例句
Macro adjustment is needed in a market economy.
市场经济需要宠观调控。
Please check the date.
请核实一下日期。
How often do you write?
你们隔多久写信？