Stereoselective reaction
[化] 立体选择反应
🧩 词语组成解析
🗣️ 情景例句
Anything else, sir?
先生，还要别的东西吗？
He that fears death lives not.
怕死者活不了。
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。