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- The concept of anagenesis factor to describe evolution phases and strategy of grading evolution were proposed. 提出了描述进化阶段的进化因子概念和分阶段进化策略；
- 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。
- A student who gets 90% is graded A. 凡得90分的学生列为甲等。
- Business is now on the up grade. 目前生意蒸蒸日上。
- The space program is the evolution of years of research. 太空计划是多年研究的发展结果。
- The term papers have been graded. 期末考卷已评完分数了。
- Darwin put forth the theory of evolution,. 达尔文提出了进化论。
- Pupils with 90% or more are awarded Grade A. 满90分的学生评为甲等。
- The sixth grade saw an educational film yesterday. 六年级学生昨天看了一部教育片。
- Do you know about the evolution of a seed into a plant? 你知道从种子发展成为植物的过程吗？
- He received a failing grade on the term paper. 他的期末报告不及格。
- Our watchword is: Evolution, not revolution'. 我们的口号是: ｀要循序渐进，不要剧烈变革.;＇
- 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。
- 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。
- The naughty boy had to repeat the fifth grade. 这个顽皮的男孩不得不重读五年级。
- He ranks among the best pupils of his grade. 他是他们班级最好的学生之一。
- Darwin spend more than twenty year work on his theory of evolution. 达尔文花了二十余年时间研究他的进化论。
