【英语时差8,16】疫苗如何运作-上

When a virus enters your body, your body has to recognize it then produce a protein called an antibody. These antibodies attached to the virus and neutralize¹ it. However, in the time it takes your body to produce enough antibodies, the virus may have already multiplied enough to make you sick. Here is the good news. Once your body has learned to make the right antibodies, it can make them much faster neutralizing² the virus before you get sick. Vaccines³ teach your body to recognize and react to a virus quickly. There're two types of vaccines you can get to teach your body to recognize a virus. Inactivated⁴ vaccines contain a dead virus which cannot infect yourselves but your body recognizes it as a virus and produces antibodies to neutralize it. The vaccines for polio and the seasonal⁵ flu use dead viruses.

1 neutralize   

v.使失效、抵消，使中和

参考例句：

• Nothing could neutralize its good effects.没有什么能抵消它所产生的好影响。
• Acids neutralize alkalis and vice versa.酸能使碱中和碱，亦能使酸中和。

2 neutralizing   

v.使失效( neutralize的现在分词 )；抵消；中和；使（一个国家）中立化

参考例句：

• This juice-about a quart a day--pours into my duodenum, neutralizing acids. 这种消化液（每天约分泌1品脱）流入我的十二指肠，把酸中和了。 来自辞典例句
• AIM: To verify the role of a synthetic peptide in neutralizing endotoxins. 目的：检验一条合成肽在中和内毒素活性方面的作用。 来自互联网

3 vaccines   

疫苗，痘苗( vaccine的名词复数 )

参考例句：

• His team are at the forefront of scientific research into vaccines. 他的小组处于疫苗科研的最前沿。
• The vaccines were kept cool in refrigerators. 疫苗放在冰箱中冷藏。

4 inactivated   

v.使不活泼，阻止活动( inactivate的过去式和过去分词 )

参考例句：

• Molluscicides are quickly inactivated by sunlight and adsorption to mud organic matter. 灭螺剂因阳光作用、泥土及有机物质的吸收会很快失效。 来自辞典例句
• Viruses were inactivated by BPL and the toxicity measured again. BPL对病毒进行灭活，测定残存毒力。 来自互联网

5 seasonal   

adj.季节的，季节性的

参考例句：

• The town relies on the seasonal tourist industry for jobs.这个城镇依靠季节性旅游业提供就业机会。
• The hors d'oeuvre is seasonal vegetables.餐前小吃是应时蔬菜。