学个词 Learn a Word-VOA英语教学 2242-circulate

今天我们要学的词是 circulate. Circulate 动词，意思是传播。流感疫苗是如何研制的？Flu viruses constantly mutate, and the vaccine¹ is changed every year based on what scientists see circulating. 流感病毒不断变异，所以科学家每年都要根据眼下正在流行的病毒来研制疫苗。The University of Oklahoma is investigating a video circulating on social media allegedly showing members of a fraternity chanting racist² language. 俄克拉荷马大学对社交媒体上流传的一段视频展开调查，据悉视频上显示了该大学一个兄弟会成员高喊种族歧视的语言。好的，今天我们学习的词是 circulate, circulate, circulate...

1 vaccine   

n.牛痘苗，疫苗；adj.牛痘的，疫苗的

参考例句：

• The polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
• She takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。

2 racist   

n.种族主义者，种族主义分子

参考例句：

• a series of racist attacks 一连串的种族袭击行为
• His speech presented racist ideas under the guise of nationalism. 他的讲话以民族主义为幌子宣扬种族主义思想。