Anionic cycloaddition
[化] 负离子环加成
🧩 词语组成解析
a. [化]阴离子的,带负电荷的离子的
n. [化]环加成( 指不饱和分子化合成一环状化合物的反应)
🗣️ 情景例句
You did a good job sewing this dress, I can see that you sewed the sections in the correct order.
你这条裙子做得不错，我看得出来你是按顺序来做缝纫的。
Last year, he applied to Harvard University for a scholarship and succeeded in passing a difficult examination.
去年，他向哈佛大学申请奖学金并通过了一个很难的考试。
She entered the station twenty minutes before the train was due,
在火车进站20分钟前她就进了车站。