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- His figure looks very funny in the concave mirror. 他的样子在凹镜里显得非常可笑。
- An indented or concave surface or area. 凹陷，洼地凹的表面或地区
- It is vain to attempt to root out heresy by force. 试图用暴力消除异端邪说是徒劳的。
- The gardener tore up the plant, root and all. 园丁把园中的花草树木连根全挖了出来。
- The plant has not struck root yet. 那棵植物还没生根。
- Unhappiness is the root cause of his illness. 不开心是他生病的根源。
- Idleness is the root of all evil. 懒惰乃万恶之源。
- 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 managed to root out a copy of the document. 我好不容易才找到了文件的副本。
- He caught his foot on a tree root and stumbled. 他一只脚被树根绊住而跌倒了。
- Do you think it is possible to root out crime? 你认为可以根除犯罪吗?
- Money is thought to be the root cause of all evils. 金钱被认为是万恶之源。
- This is the root cause of poverty. 这是贫穷的根本原因。
- A concave molding with a cross section that approximates a quarter circle. 飞檐的凹圆线脚截面近于九十度弧的凹线脚
- That is the root cause of all our differences. 那是我们一切分歧的根源。
- A depression similar to that in a shallow concave container for food. 凹形，凹面与浅的凹型盛食物的容器相似的凹处
- Do you think the new rosebush has taken root? 你看新栽的玫瑰长根了吗？
- The palm of one's hand is slightly concave. 人的手掌是微凹的。
- A concave surface, structure, or line. 凹面、凹形结构、或凹线
- Concave on both surfaces;biconcave.Used of a lens. 双面均凹进的；双凹的。用于指透镜
