Polychloriznated
多氯化的
🗣️ 情景例句
It seems I owe you an apology.
好像我该向你道个歉。
Let difficulties occur but not the loss of courage.
纵使困难重重，也不丧失勇气。
If you order in large lots, we'll reduce the price.
如果你大量订购，我们可以降价