Polyformaldehyde
聚甲醛
🗣️ 情景例句
Well, my choice of careers.
是的， 我的事业抉择问题。
The little boy left home for his first day at school.
那个小孩第一天离开家去上学。
the old undue grip relaxes and the process of recuperation and repair begins.
原先不适当的紧张就会松弛下来，恢复和修整的过程就会开始。