Subconvex
(中间)微凸的, 稍呈凸面的
🗣️ 情景例句
Ready, folks?
可以点菜了吗？ 两位，
Give me the rocket and boat, and I'll give you a sucker.
把那火箭和快艇给我，我就给你棒棒糖。
All we have to do is sign the contract.
剩下的只要签订个契约就行了。