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- John is the spark plug on his rowing team. 约翰是划船队的中坚分子。
- 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
- You can plug into the national computer network. 你可以接通全国计算机网络。
- The TV compere gave her new record a plug. 电视节目主持人极力推荐她的新唱片。
- The wall plug is broken, isn't it? 墙上的插座坏了，不是吗？
- It's hard to get at the spark plug without a proper wrench. 没有一把合适的扳钳，要抓住那个火花塞是困难的。
- Pull (out) the plug and let the water drain away. 拔掉塞子，把水放掉。
- Will you plug in the tape recorder for me? 请你替我把录音机的插头插上好吗?
- She pulled the plug to let out the water. 她拔起塞子放水。
- concave plug 凹面塞
- He put plug in his ear because the noise was too loud. 因为太吵闹了，他用耳塞堵住了耳朵。
- Make this plug smaller for me, but don't whittle away too much. 帮我把这个塞子弄小一点，但木头不要削掉太多。
- 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。
- The husband didn't plug in to what the wife was talking about. 丈夫根本没有留意听妻子在说些什么。
- 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
- 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 students will plug in to these modem philosophy trend? 你认为学生会对这些现代哲学思潮感兴趣吗？
- 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
