Pectus excavatum
[医] 漏斗胸
🧩 词语组成解析
[医] 胸
🗣️ 情景例句
Let's give him our presents--now.
现在把我们的礼物送给爷爷吧。
What sort of medicine do you take?
你吃的是什么药？
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。