| 1. | The mosquito is a transmitter of disease .
蚊子能传染疾病。 |
| 2. | Man continually wages war on them , for they contaminate food , carry diseases , or devour crops .
人类不断地向它们发出攻击，原因是它们污染食品、传染疾病或吞噬庄稼。 |
| 3. | Helps control the spread of infectious diseases
这就有助于防止传染疾病的传播。 |
| 4. | Free from the pollution of leprosy or other contagious disease
没有?疯病污染或其他传染疾病。 |
| 5. | The mosquito is a transmitter of disease
蚊子能传染疾病 |
| 6. | The investigation also found no evidence of an infectious disease
调查同样也没有找到传染疾病的证据。 |
| 7. | Instead , it weakens their systems so they can die from other infections
从而导致儿童死于其他传染疾病。 |
| 8. | The rapid spread of a disease throughout a population is an epidemic
在人口中快速传播的疾病称为流行性传染疾病。 |
| 9. | Infectious organisms found in saliva are released when people spit
人们吐痰的时候唾液中传染疾病的生物就释放出来了。 |
| 10. | Persons suffering from sores , wounds or any infections or contagious disease must not enter the pool
带有任何伤病或患有传染疾病的人禁止入内。 |
