Polysulfonate
多磺酸盐
🗣️ 情景例句
I an no match for you at running.
在赛跑方面我不是你的对手。
It's just the matter of the schedule,that is,if it is convenient of you right now.
如果你们感到方便的话，我想现在讨论一下日程安排的问题。
Should we invite Susan to the party?
要请苏三参加舞会吗？