concave
US /ˈkɑːn.keɪv/
UK /ˈkɑːn.keɪv/
形容词
1.
凹的, 凹面
having an outline or surface that curves inward like the interior of a circle or sphere
示例:
•
The spoon has a concave shape.
勺子是凹形的。
•
The lens of the telescope is concave.
望远镜的镜片是凹面的。
同义词:
在 Lingoland 学习这个单词