Arsenic pentafluoride
[机] 五氟化砷
🧩 词语组成解析
arsenic
[['ɑ:sənik]]
n. 砷, 砒霜\\n[化] 砷As
五氟化物
🗣️ 情景例句
I'm sorry you can't come with us, Susan.
很遗憾你不能同我们一起去， Susan。
My brother is twice as tall as your sister.
我弟弟比你妹妹高一倍。
Some of us will die sooner, a few will live longer----on into a ninth or tenth decade.
有些人会死得早一些，少数人寿命会长一些--活到八十几岁或九十几岁，