Tetraphosphorus monoselenide
[化] 一硒化四磷
🗣️ 情景例句
My friend is not gay; he's straight.
我的朋友不是“基佬”，他很正常。
What is happening up there?
上面发生什么事情？
Jim is writing. Lily isn't writing. She's looking at the blackboard.
吉姆在写字。莉莉没在写字。她在看黑板。