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Rebecca949 发表于 2016-10-13 10:52

VOA慢速英语2016.09.20

[audio]http://sound.yywz123.com/tingbbs/voa/voa20160920.mp3[/audio]



Reaserchers say public mistrust of vaccines is causing diseases like measles and yellow fever to spread. The scientists said the lower levels of trust can lead to people refusing vaccines. ___________________________ 研究人员认为公众对疫苗的信任危机导致了麻疹,黄热病等疾病的传播。科学家说越来越低的信任水平会导致人们拒绝打疫苗,______________________




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