sub-convex
常见例句
- I had to sub for the referee, who was sick.
裁判病了,我得代为裁判。 - A convex surface, body, part, or line.
凸面、凸面体、凸面部分或凸线 - The sub can outrun any destroyer.
这艘潜水艇比任何驱逐舰航行得都快。 - Just as a double convex lens enlarges, so a double concave lens reduces.
正象双凸透镜可以放大那样,双凹透镜也可以缩小。 - I have to sub on her for the new car I want to buy.
要买那辆新车,我得向她借点儿钱。 - Clive Walker came on as a sub and starred.
克里夫-沃克替补上场,大放异彩。 返回 sub-convex