关于discussion400的作文知识

六年级英语作文:discussion400字

I’mwillingtogetvaccinated,too.Sincethereisnomedicinethatcanbeusedtotreatthisdisease,avaccinewillbeabetterchoiceforstoppingthevirus.?TheCOVID-19vaccineishopedtoeffectivelypreventpeoplefrombeinginfecte...