Natural selection
辅助 Assistant[医] 自然选择, 自然淘汰
📖 牛津释义
natural selection
evolutionary theory that animals survive or become extinct according to their ability to adapt themselves to their environment 自然选择; 天择.
🧩 词语组成解析
natural
['nætʃrəl]
adj. 自然的;物质的;天生的;不做作的;
n. 自然的事情;（生来的）白痴;[乐]（风琴等的）白键;
natur=nature自然+al...的 →自然（界）的
🗣️ 情景例句
Hang in there. things will get better.
坚持住，情况会好起来。
This round table weighs about forty-five pounds.
这张圆桌子重大约45磅。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。