Actinium
n. 锕\\n[化] 锕Ac
✅ 同义词
🗣️ 情景例句
What time does the library close?
图书馆什么时候闭馆？
It's no trouble at all. I'll carry this suitcase for you.
一点也不麻烦，我来替你提这只箱子。
Come in and sit down. Wei Hua!
进来坐坐，魏华！