Epimerism
差向异构
🗣️ 情景例句
What did you say? I didn't quite get that.
你说什么？我没听清楚。
May I ask you a question?
我能问你个问题吗？
They got on so well that Fred decided not to go to the lecture but to show the tourist around the university instead.
他们相处得很融洽，于是弗雷德决定不去听课，而带领这位游客到这所大学各处参观。