Poliovirus
[醫] 脊髓灰質炎病毒
??? 情景例句
What's the bottom line?
究竟是怎么回事？
We must make it clear from the very beginning that competitive quotations are acceptable.
必須一開始就講清的是，有競爭力的報價可以接受。
I could say nothing but that I was sorry.
我除了說“對不起”之外，什么也說不出來。