Beryllonite
磷(酸)钠铍石
🗣️ 情景例句
In about half an hour. Why?
大约半个小时。为什么问这个？
When I'm going to buy a TV set next time, I'll buy a larger screen.
你有电视借目标吗？体育特别节目之后是什么？
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。