natural killer

• 自然杀伤细胞

natural killer的用法和样例：

例句

1. More recently, the laboratory has focused on natural killer cells and their roles in peripheral blood and in the pregnant uterine decidua.
   最近，实验室已经把目光投向了自然杀伤细胞以及它们在外周血和怀孕时子宫蜕膜中的作用。