enzyme

It is believed that it inhibits an enzyme that promotes cell proliferation in tumours.

据信它能抑制一种能在肿瘤中促进细胞增殖的酶的生成。

This enzyme accumulates in the larvae to a level where it becomes toxic and kills them.

这种酶在幼虫体内积累到一定浓度，就会变得有毒并杀死它们。

Apparently, though, CYP2E1 affects how sensitive the brain is to alcohol, perhaps because it —unlike the enzyme in the liver —generates free radicals, tiny molecules that can damage cells.

虽然表面上是这样，CYP2E1却影响着大脑对酒精的敏感度，或许因为它—不像在肝脏中的酶—产生了自由基，能损害细胞的微小分子。