Pre-enzyme
[化] 酶原
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
🗣️ 情景例句
About three weeks. We'll have enough time for our talks.
大约三个礼拜，我们有足够的时间交谈了。
Nothing down, nothing up.
没有落就没有起。
Long ago, people believed that the world was flat.
很久以前人们相信地球是平的。