enzyme

/ˈɛnˌzaɪm/

any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions

中文释义：酶

Enzymes in the stomach help break down food during digestion.

胃中的酶在消化过程中帮助分解食物。

Certain enzymes are used in the production of cheese.

某些酶被用于奶酪的生产。