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- 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。
- Flakes of rust are falling from the old iron pan. 一片片的锈从旧铁锅上落下。
- The metal has corroded (away) because of rust. 该金属已锈蚀。
- He's not in the first grade as a musician. 他不是第一流的音乐家。
- Better to wear out than rust out. [谚]与其锈坏，不如用坏。
- Business is now on the up grade. 目前生意蒸蒸日上。
- She read extensively to keep her mind from rust. 她广泛阅读以防止脑子迟钝。
- Pupils with 90% or more are awarded Grade A. 满90分的学生评为甲等。
- The underneath of the car was covered with rust. 汽车底部锈迹斑斑。
- Iron reacts with water and air to produce rust. 铁与水和空气起化学反应而生锈。
- This special coating is designed to resist rust. 这一特别的涂层旨在抗锈。
- Rust has already bitten into the enamel. 铁锈已经烂进搪瓷里去了。
- Don't let your mind rust during the vacation. 不要让你的脑子在假期里变迟钝。
- The iron pipe is scaly with rust. 铁管子因为生锈一片片剥落了。
- How can I remove the rust from the iron door? 我怎样才能把铁门上的锈除掉呢？
- The sixth grade saw an educational film yesterday. 六年级学生昨天看了一部教育片。
- 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。
- The twins will enter the fourth grade this fall. 这对双胞胎今年秋季将升到四年级。
- The great advantage of this metal is that it doesn't rust. 这种金属最大的优点是不生锈。
