Some T-cells go on to kill infected body cells. Some act as part of the immune system's memory, so that it can respond quickly to the recurrence of an infection.
一部分淋巴细胞继续杀死感染了病毒的身体细胞，还有一部分转作免疫系统的记忆成分，以便再次感染病毒时迅速作出反应。
Sirius Black: the world isn "t split into good people and Death Eaters. We" ve all got both light and dark inside us. What matters is the part we choose to act on.
小天狼星：世界不是分为好人和食死徒，每个人内心都有光明和黑暗，重要的是我们选择了哪个部分。
Sirius Black: the world isn "t split into good people and Death Eaters. We" ve all got both light and dark inside us. What matters is the part we choose to act on. That "s who we really are."
小天狼星：世界不是分为好人和坏人，每个人内心都有光明和黑暗，真正重要的是我们如何选择，知道我们究竟是什么人。
Sirius Black: the world isn "t split into good people and Death Eaters. We" ve all got both light and dark inside us. What matters is the part we choose to act on. That "s who we really are."
小天狼星：世界不是分为好人和坏人，每个人内心都有光明和黑暗，真正重要的是我们如何选择，知道我们究竟是什么人。
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