Delrin
迭尔林(聚甲醛树酯)
🗣️ 情景例句
We all condemn cruelty to children.
我们一般谴责虐待儿童的行为。
Will you speak more slowly?
请你说慢一点好吗？
as by falling into inaccessible caves, or into an ice crevasse, like the Siberian mammoths,
如掉进难以到达的洞穴，或掉进冰河裂缝里，或者像西伯利亚长毛象那样掉进冰窟中，