D. cx.
[医] 双凸的
🧩 词语组成解析
[医] 凸的, 凸面的
🗣️ 情景例句
Oh my!
啊！
Idle people (folks) have the most labour (take the most pains).
懒人做工作，越懒越费力。
Between 1850 and 1910 the bison population is thought to have fallen from 60 million to just a few hundred.
人们认为，在1850年到1910年之间，野牛的头数从6，000万头降到只有几百头了。