Eu
[化] 富集铀; 浓缩铀\\n[医] 铕(63号元素)
✅ 同义词
🗣️ 情景例句
You're going to be OK.
你不会有问题了。
Do you have an appointment?
你有预约吗？
His previous attempts had been unsuccessful.
他以前的尝试没有成功。