| 单词 | killer T cell | 
| 释义 | killer T cellnoun variants  or less commonly killer T lymphocyte     plural killer T cells also killer T lymphocytes     : cytotoxic t cell  The antigen receptors of killer T cells allow them to recognize the viral peptides, which signal that a cell must be destroyed as unhealthy. A subset of lymphocytes known as killer T cells may also respond to the envelope protein by destroying infected cells. | 
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