| 1. | Photochemical oxidants have been associated with impaired athletic performance in healthy cross-country runners .
光化学氧化剂一直与健康的越野赛跑运动员的成绩下降有关。 |
| 2. | The fourth reason is that love impact study , results declined
原因之四是，恋爱影响学习，成绩下降。 |
| 3. | Bill ' s playing came between him and his studies , and his grades went down
比尔的贪玩妨碍了他的学习，他的成绩下降了。 |
| 4. | Dan : but if her grades go down , she can ’ t date for the rest of the year
如果她的成绩下降，在最后的一年里，他不准谈对象。 |
| 5. | Many students who have part - time jobs have shown a decline in their studies
很多做兼职工作的学生出现了学习成绩下降的现象。 |
| 6. | The concern is that respiratory problems could impede athletic performance and prevent records from being broken
呼吸不顺畅，使得成绩下降，无法破记录。 |
| 7. | When veron joined , his slower playmaking style disrupted the team and results fell away
当贝隆加入球队，他缓慢的组织风格使球队陷入混乱，导致了成绩下降。 |
| 8. | You ' re giving more priority to your personal life than to your study . no wonder your grades are suffering
你更注重个人的生活而不是学习，难怪你的成绩下降了。 |
| 9. | In teenagers and young children , lack of sleep can result in attention disorders and poor academic performance
对于青少年和儿童来说，睡眠不足会导致注意力障碍和学习成绩下降。 |
| 10. | In his own study , he found that reading and mathematics performance dropped after a school in rural pennsylvania required uniforms
他发现在宾夕法尼亚州的一个乡村学校自从要求穿制服以后阅读及数学成绩下降了。 |
