Polydiene
聚二烯
🗣️ 情景例句
Dad often works late,
爸爸老是工作到很晚，
I'm not joking.
我可不是说着玩的。
It was not forced upon them by the survival competition; they could have caught and lived on prey without using poison, just as the thousands of non-poisonous snakes still do.
毒液不是生存竞争强加给它们的，它们也可以不用毒液捕捉动物而生存，就像今天成千上万的无毒蛇那样。