日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

您現(xiàn)在的位置: > Language Tips > Easy English > Odd Question  
 





  What are germs?
[ 2006-05-26 11:00 ]

Did you ever wonder why or how you became sick? Chances are that germs were the source of your illness.

Germs are tiny organisms that creep into our bodies and attack our immune system.

Unable to live on their own, germs invade our bodies and steal the nutrients and energy that our bodies produce. After gobbling up all of our nutrients and vitamins the germs leave behind their own harmful wastes called toxins. These toxins are the sources of our runny noses, high fevers, diarrhea and hoarse coughs.

There are many different kinds of germs, but the four most common are: bacteria, viruses, fungi and protozoa. Each of these types of germs cause different symptoms or illnesses. For instance, while bacteria germs cause minor illnesses such as ear infections, sore throats and cavities, viruses cause more serious diseases such as chicken pox, measles and the flu.

Although germs are everywhere, most of the time we don't realize that we have germs because they are so small that you need a microscope to see them. Germs spread through the air when someone coughs or sneezes. Or germs can also appear in bodily fluids like saliva, sweat and blood. The best way to avoid getting germs is stay away from these areas where germs spread. But the most easiest way to protect yourself from germs is to wash your hands with soap and water frequently. You should always soap up your hands with suds after using the bathroom, after touching money, after playing outside or after visiting a sick friend or relative.

 

note:

germ: 微生物
immune system: 免疫系統(tǒng)



gobble
: 狼吞虎咽

toxin: 毒素
runny nose: 流鼻涕的鼻子
diarrhea: 痢疾


throw-up
: 嘔吐

 

 

bacteria: 細(xì)菌
viruses: 病毒
fungi:真菌
protozoa: 原生動(dòng)物
cavity: 牙齒蛀洞
chicken pox: 水痘
measles: 麻疹


microscope: 顯微鏡
bodily fluids: 體液
saliva:唾液
sweat: 汗


sud: 肥皂水

 
 
 




主站蜘蛛池模板: 91亚洲国产成人精品性色 | 拍拍拍无遮挡高清视频在线网站 | 男女性关系视频免费观看软件 | 日韩久久久久久 | 久草欧美视频 | 日韩a级一片 | 国产午夜精品一区二区三区嫩草 | 九一精品 | 午夜久久 | 福利在线播放 | 日韩综合在线视频 | 成人一级大片 | 91丝瓜视频 | 欧美午夜精品久久久久免费视 | 久久亚洲欧美日韩精品专区 | 色综合久久天天综合网 | 日韩免费精品一级毛片 | 欧美精品在线视频观看 | 成人免费黄色网 | 日本天天操 | 久久精品夜夜夜夜夜久久 | 好吊日在线视频 | 国产一区在线免费观看 | 男女猛烈激情xx00免费视频 | 福利免费在线 | 日麻批免费视频 | 午夜影院在线视频 | 久久无码AV亚洲精品色午夜 | 午夜电影网址 | 九九伊在人线 | free-porn-ok| 日本一区二区三区精品国产 | 亚洲精品国产成人 | 国产不卡在线观看视频 | 国产精品免费一区 | 波多野结衣办公室在线 | 久草草视频在线观看免费高清 | 欧美精品在线免费观看 | 亚洲国产精品日韩高清秒播 | 午夜精品久久久久久久99蜜桃i | 欧美视频在线一区 |