Allylation
烯丙基化
🗣️ 情景例句
She loves children.
她喜欢孩子。
It's a shame I haven't seen more of you these recent years.
真遗憾，最近几年我未能见到你。
'I told you yesterday and the day before yesterday,' he shouted,
“我昨天和前天都告诉过您了，”他大叫着，