Quinuclidinyl
奎宁环基
🗣️ 情景例句
He must have loved her very much.
他一定非常非常地爱她。
Would you please hold the door open for me?
可以请你为我把门拉着吗？
Even when it was raining heavily, he refused to carry an umbrella.
即使大雨倾盆，他也总是拒绝带伞。