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Flu viruses, however, evolve so fast that this "immune memory" provides only partial protection.
然而,流感病毒进化如此之快,以致于这种“免疫记忆”只能提供部分保护。
youdao
-
Flu viruses, however, evolve so fast that this "immune memory" provides only partial protection.
然而,流感病毒进化如此之快,以致于这种“免疫记忆”只能提供部分保护。
youdao