Planoconvex
[医] 平凸的
🗣️ 情景例句
If you go camping, at night you'll hear all the nocturnal animals.
如果你去野营，晚上可以听到动物的夜歌。
It is as well to know which way the wind blows.
识时务者为俊杰。
One Monday, there were fewer people in the shop than usual when the woman came in,
有一个星期一，当这位妇女走进这家商场时，里面的人比往常少，