您要查找的是不是：
- Objective: To analyze relations of mat surface and risk factors of root caries. 摘要目的：分析根面龋与根面易感性的关系。
- The cockroach has a rugged face and sunken eyes that seems to be hiding something, exactly alike Cang Li Man. 那头蟑螂有一张沧桑的脸，深陷的眼睛好像藏着什么东西，简直和仓里满一模一样。
- The rugged face of the old sailer 老水手布满皱纹的脸
- the rugged face of the old sailor. 老水手满是皱纹的脸。
- Father bought a new welcome mat for our new house. 爸爸为我们的新房子买了一个擦鞋垫。
- I wiped my shoes on the mat before I came in. 我在进门前把鞋在垫子上擦了擦。
- There are some clods of soil on the mat. 垫子上有些土块。
- The force of his fall was broken by the straw mat. 草垫的缓冲作用减弱了他下跌的力量。
- Be careful you don't trip (up) on the mat. 小心别在地席上绊倒了。
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
- A coal fell from the fire and burned the mat. 一块煤炭从火中掉出来，烧坏了地席。
- A breeze ruffled the surface of the lake. 一阵微风吹皱了湖面。
- Our welcome mat is always out to our friends. 对于朋友，我们总是热烈欢迎。
- He lifted the mat and slid the key under (it). 他掀起垫子把钥匙悄悄放在下面。
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- The calm water surface is very much like a mirror. 那平静的水面十分象一面镜子。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- The rugged surface of the palatine was muffled with tender verdure. 这座昔日王宫的那片凹凸不平的场地上覆盖着一层嫩绿。
- He is honest only on the surface. 他只是表面诚实而已。
