Concavo-concave
a. 两凹的, 两面凹洼的\\n[建] 两面凹的
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
🗣️ 情景例句
I am a representative of Politics Association.
我是政治协会的代表。
Every why has a wherefore.
事出有因。
This can give rise to curious situations, as it did in the case of Alfred Bloggs who worked as a dustman for the Ellesmere Corporation.
而这常常会引起种种奇怪的现象，在埃尔斯米尔公司当清洁工的艾尔弗雷德。布洛斯就是一个例子。