Key enzyme
[化] 关键酶
🧩 词语组成解析
key
[kiː]
n. 钥匙;（打字机等的）键;关键，线索，秘诀;（音乐的）调;
vt. 键入;锁上;调节…的音调;提供线索;
vi. 使用钥匙;
adj. 关键的;主要的;
🗣️ 情景例句
John isn't here today. That figures, he looked very sick yesterday.
约翰今天没有来，怪不得，他昨天就好像不太舒服。
You are useless!
你真没用！
If I continue to play a lot of concerts over the next five year.
如果在今后的五年内我连续举办一些音乐会。