Heterocyclization
杂环化(反应)
🗣️ 情景例句
Speaking of mother and of father
谈到孩子的爸， 孩子的妈，
Jeff was not pleased with his school grades.
杰夫不满意自己在学校的成绩。
Where can I check in?
在哪儿办理登记手续？