Polydiolefin
聚二烯烃
🗣️ 情景例句
She grabbed the chance to travel abroad.
她抓住机会到国外旅行。
The wolf and fox are both privateers.
狐狸与狼，抢劫大王。
Is it a black cat with one white ear and two white legs?
是那只长着一只白耳朵和两条白腿的黑猫吗？