Delrin
迭尔林(聚甲醛树酯)
🗣️ 情景例句
He is not cut out for teaching.
他不是当教师的料。
We should be able to resolve our differences.
我们应该能解决我们的分歧。
Firemen had been fighting the forest for nearly three weeks before they could get it under control.
消防队员们同那场森林大火搏斗了将近3个星期才最后把火势控制住。