NK cells kill their target cells by releasing cytotoxic granules in their cytoplasm directly into the target cell.

NK细胞通过释放胞质内的细胞毒颗粒直接进入靶细胞内，来杀死靶细胞。

They can also be cytotoxic, meaning that they will kill cells of said foreign body.

T细胞们也会产生细胞毒性(Cytotoxic)，将前述的外来细胞消灭。

Chemotherapy drugs are delivered through pills and injections and use " cytotoxic agents, " which means compounds that are toxic to living cells.

化疗药物通过药丸服用或者注射器注射进入体内，并要使用“细胞毒剂”——这是一种对活细胞有毒的化合物。

In the thymus, these precursor T-cells mature and express either CD4 on helper T-cells or CD8 on cytotoxic T-cells sometimes known as suppressor T cells.

胸腺中，这些前体T细胞在成熟后，分化为辅助T细胞在细胞表面表达CD4，或分化为细胞毒性T细胞（有时被称为抑制T细胞）在细胞表面表达CD8。

Some T cells (T8 cells) are cytotoxic or killer cells; they act directly on cells bearing antigen (tumor cells and tissue transplanted from an organ donor).

一些T细胞（T 细胞）是细胞毒性或杀伤细胞;它们直接作用于携带抗原的细胞（肿瘤细胞和从器官供体移植的组织）。