Delrin
迭尔林(聚甲醛树酯)
🗣️ 情景例句
I don't know. It's locked.
不知道， 锁着呢。
You may go farther and fare worse.
一动不如一静。
If you order in large lots, we'll reduce the price.
如果你大量订购，我们可以降价