| 1. | Roundworm eggs, pox and marek's disease viruses, coccidia, and other infections materials can be carried on crates, footwear, and vehicles .
圆虫虫卵，痘和马立克氏病病毒，球虫及其他传染性物质，都可以由条板箱，鞋和运输工具携带。 |
| 2. | " drink , and no roundworms can live in the stomach , " replied the child
小孩回答：喝酒，肚子不会有虫。 |
| 3. | Roundworms roundworms are round and long , and the length can reach 20 cm
蛔虫-蛔虫呈长圆条状，长度可达20厘米。 |
| 4. | Nematodes worms : ascaris lumbricoides roundworm ; enterobius vermicularis pinworm ; ancylostoma duodenale european hookworm ; 2
2 .消化道吸虫：如华枝睾吸虫布氏姜片吸虫 |
| 5. | Now they think they know why . they identified a gene in roundworms that directly links calorie restriction to longer lifespan
现在他们认为找到原因了。他们在蛔虫身上找到一种基因，直接负责热量的控制，进而延长寿命。 |
| 6. | The roundworm in the water not only stayed alive but also swam here and there in the cup . but the roundworm in the wine passed away in no time
放进冷水的那条虫不但活著，而且还在里面游来游去浸在酒杯里的那条虫马上就死掉了。 |
| 7. | As for those intestinal parasitic diseases caused by roundworm , hookworm , pinworm and tapeworm , it was clearly understood that those diseases were related to the parasites lodging in the body and that their occurrence was connected with unclean foodstuffs
对蛔虫、钩虫、蛲虫、绦虫等肠寄生虫病，人们更明确认识到由这些寄生虫寄生在人体而致病，它的发病与饮食不洁有关。 |
| 8. | There was a father who endeavored to make his child understand what harm drinking might be to one s health . he brought two cups , one of which he filled with water and the other with wine . next , he got two roundworms and into each cup he put one roundworm
有一个爸爸很努力地想教他的小孩了解喝酒对身体的害处，所以他拿来两个杯子，一杯放冷水一杯放酒，再拿两条蛔虫放进杯里。 |
| 9. | This is one of the most common harmful effects that parasites have on their hosts . for example , roundworms and pork tapeworms live in the intestines and rob the body of nutritious substances in the intestines , thus causing malnutrition . 2 mechanical action : parasites can endanger the host through obstruction , compression and direct damage
1夺取营养：寄生虫摄食宿主的营养物质，供其发育繁殖和生存，这是寄生虫对宿主造成最常见的危害之一，如蛔虫和猪肉绦虫寄生在小肠内，夺取肠道内的营养物质，可引起营养不良。 |
| 10. | Eating the flesh of carnivores and herbivores , including the surface and interior parts of cows , pigs , fish , and shrimp , is one of the major causes of parasitic infection in the human body . the most common pathway for human infection is the mouth . for example , the eggs of roundworms and whipworms and the mature cysts or larvae of some other parasites enter the human body through contaminated food or drinking water
动物媒介包括牛猪鱼蟹虾等肉用动物的体表和体内，而人体感染的方式和途径中又以经口感染最为常见，如蛔虫鞭虫的感染性卵和某些原虫的成熟包囊等，都是通过摄食被污染的食物或饮水而传染的植物媒介多因生食感染所引起，较易避免。 |
