您要查找的是不是：
- Periosteal osteosarcoma and high grade surface osteosarcoma 骨膜骨肉瘤与高度恶性表面骨肉瘤
- Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
- He's not in the first grade as a musician. 他不是第一流的音乐家。
- Business is now on the up grade. 目前生意蒸蒸日上。
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- Pupils with 90% or more are awarded Grade A. 满90分的学生评为甲等。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
- A breeze ruffled the surface of the lake. 一阵微风吹皱了湖面。
- 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。
- The sixth grade saw an educational film yesterday. 六年级学生昨天看了一部教育片。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- He received a failing grade on the term paper. 他的期末报告不及格。
- Red and yellow grade into orange. 红与黄混合成橘黄。
- He is honest only on the surface. 他只是表面诚实而已。
- The twins will enter the fourth grade this fall. 这对双胞胎今年秋季将升到四年级。
- Their marriage is on the down grade. 他们的婚姻关系每况愈下。
- The trial flight has made the grade. 试飞成功。
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- The naughty boy had to repeat the fifth grade. 这个顽皮的男孩不得不重读五年级。
