23Envelope | 1 points | Nov 22 2021 18:24:26

还好没老外来，不然这行英文不给人吓尿了

https://i.redd.it/c5zkt4vaw6181.jpg

[-] NotDesiredName | 2 points | Nov 22 2021 18:38:31

nucleic acid确实是核酸，不过covid test更常用就是了