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
Are you married or single?
你结婚了还是单身？
I feel blue at the news.
我听到这消息而闷闷不乐。
After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour.
比赛结束后，坎贝尔非常失望地得知他的平均时速是299英里。