| 1. | Larvas become retarded in the mucus .
幼虫被阻留在粘膜内。 |
| 2. | Small molecules are retarded from leaving the column .
小的分子被阻滞在层折柱上。 |
| 3. | A retarded child needs help , not pity .
智力迟钝的孩子需要的不是怜悯，而是帮助。 |
| 4. | A serologic reaction retards the growth of the pollen tube .
血清反应阻止花粉管生长。 |
| 5. | Lack of science and education retards social progress .
缺乏科学和教育会妨碍社会进步。 |
| 6. | The heart rate is regularly accelerated and then retarded .
心率有规律的加速而后减慢。 |
| 7. | Numerous and extensive cavities retard the turbulent mixing process .
多而大的涡流区延迟了扰动的混合过程。 |
| 8. | Numerous and extensive eddy cavities retard the turbulent mixing process .
多而大的涡流区延迟了扰动的混合过程。 |
| 9. | Writing may retard the process of language change under certain conditions .
在某些情况下，文字可能延缓语言的变化。 |
| 10. | China started special education for the mentally retarded children in 1979 .
中国于1979年开始对弱智儿童实施特种教育。 |
