sub-convex

常見(jiàn)例句

I had to sub for the referee, who was sick.
裁判病了，我得代為裁判。
A convex surface, body, part, or line.
凸面、凸面體、凸面部分或凸線
The sub can outrun any destroyer.
這艘潛水艇比任何驅(qū)逐艦航行得都快。
Just as a double convex lens enlarges, so a double concave lens reduces.
正象雙凸透鏡可以放大那樣，雙凹透鏡也可以縮小。
I have to sub on her for the new car I want to buy.
要買那輛新車，我得向她借點(diǎn)兒錢。
Clive Walker came on as a sub and starred.
克里夫-沃克替補(bǔ)上場(chǎng)，大放異彩。