Berkelium
n. 锫\\n[化] 锫Bk
? 同義詞
??? 情景例句
Do I have to get it done by noon?
我必須在中午以前做完嗎？
Jack is up and about now.
杰克病后復原了。
We're having trouble arranging for a carrier.
因為貨運公司的安排有問題。