sub-convex

常見例句

• 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。
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