Phosphinimine
膦亚胺
🗣️ 情景例句
Really, Grandpa?
真的， 爷爷？
There used to be a grocery store on the corner.
过去在角落上有一个杂货店。
The girl, tears streaming down her face, begged to be allowed to slip into the guard's van.
女孩泪流满面，央求让她不声不响地到押车员车厢里去算了。