Concave line
[计] 凹线
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
line
[laɪn]
n. 线条;排;行列;界线;
vt. 排队;用线标出;沿…排列成行;给…安衬里;
vi. 形成一层;排队;击出平直球;
🗣️ 情景例句
Please sit down, Alexandra.
请坐 Alexandra。
To eat barbecued meat
吃烧烤全牲
The number of wagging dances per minute told the exact distance to the feeding place.
每分钟跳摇摆舞的次数说明了到喂食点的精确距离。