Concave
[ 'kɔn'keiv ]
第5级
其它 Other
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
📝 例句
The mirror is concave.
镜子呈凹面。
The next wave would lift those objects up to its steep concave slope.
跟着涌来的浪头又把这些物品举到了那高高的浪峰上。
The graph of a concave function is always below its tangent.
一个凹函数的图象总在它的切线的下方。
There is a concave rose garden of ground down inside his courtyard.
在他的庭院里，有一片凹下地面的玫瑰花园。
The cloven hooves are sharp edged, elastic and concave.
蹄锋利，呈凹形，富有弹性。
🌱 联想助记
【记】※ cave-洞,concave-凹的:洞是向里面凹的
※ con-前缀“共同”,cave-洞:凹的东西的共同点就像洞
✅ 同义词
🔴 反义词
🔤 词根
📖 牛津释义
concave
adj
(of an outline or a surface) curved inwards like the inner surface of a sphere or ball （指轮廓或表面）凹的（如球体或球的内部）. =>illus 见插图. Cf 参看 convex.
🔁 扩展释义
*['kɒnkeiv]a. 凹的【医】 凹的, 凹面的
🏥 医学释义
凹的，凹面的
🌿 同词根单词
📖 同为「博士」词汇
查看全部博士词汇 ›🗣️ 情景例句
Please have these clothes washed before eight o'clock tonight.
我今晚8点前请把这些衣服给洗了。
I must concentrate on my new task.
我必须专注于我的新工作。
Jim is writing. Lily isn't writing. She's looking at the blackboard.
吉姆在写字。莉莉没在写字。她在看黑板。