1·Happy and infect people around happy.
快乐并感染身边旳人快乐。
2·These will continue to move around in the air and can infect people.
这些微粒能够在空气中继续传播，并能使人们受到传染。
3·Sadly, parasitic worms infect people who are still alive, especially kids.
可是，寄生型的蠕虫却可以感染活生生的人，尤其是小孩子。
4·This disease is closely related to the measles virus but it does not infect people.
该疾病与麻疹病毒密切相关，但是不会传染给人。
5·It remains unknown if any of the amino acid changes were related to the ability of this virus to infect people.
仍然不清楚这种氨基酸的变化是否和病毒具有的感染人的能力有关。
6·However, there seems to be some natural cross-protection going on with this virus: Though new to human immune systems, it doesn't seem to infect people over 60 very often.
教训：甲流病毒似乎存在交叉保护的作用：虽然甲流对人体免疫系统是一件新鲜玩意儿，但六旬以上的老人却不容易感染，原因是此前另一种病毒肆虐过，让老人的免疫系统能抵御住甲流。
7·Scientists are really interested in this idea that if you infect people with the virus, everybody will get infected, but only 75% of people will actually come down with the cold.
如果用感冒病毒感染人群，人人都会被感染，但只有75%的人会真正患上感冒，科学家对此点十分感兴趣。
8·Performance is the display of the athletes' self-confident, it reflect peoples comprehensive quality specifically in various actions which stretch beautiful and which infect people and coaches.
表现力是运动员自信能力的自我展示，体现人的综合素质，具体来说，表现力体现在各种动作能轻松完成且动作舒展优美、并能感染群众和裁判。
9·The malaria causing parasite, Plasmodium, has already developed resistance to chemical treatments. So by killing the mosquitoes, even the drug-resistance parasites never get a chance to infect people.
疟疾的病原物- - -疟原虫，已经对化学处理有了抗性。所以，通过杀蚊，即使有抗性的疟原虫也没有机会再侵染人了。
10·A single mosquito can infect a large number of people.
一只蚊子就能传染很多人。
—— 《柯林斯英汉双解大词典》