Directivities
(directivity 的复数) [计] 指向性, 方向性
🗣️ 情景例句
There's a toga party at my place tonight.
今晚在我家有个聚会。
He who would climb the ladder must begin at the bottom.
爬梯必须从底层开始。
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。