Delrin
迭尔林(聚甲醛树酯)
🗣️ 情景例句
There's so much for young people to see and do.
这里有很多可供年轻人看和做的事情。
What does you want to buy?
你要买什么？
You'd better check with the shipper.
你最好向货运公司查查看。