Protactinium
n. 镤\\n[化] 镤Pa
🏥 医学释义
钋
🗣️ 情景例句
What happened?
怎么样？
Did everyone you invited show up?
你邀请的人都来了吗？
no crowd or movement in which he may take comfort,
找不到伙伴和活动使自己得到安逸。