Quinuclidinyl
奎宁环基
🗣️ 情景例句
I'm afraid it just isn't good enough.
恐怕这不够好。
As the touchstone tries gold,so gold tries man.
试金之石可试金，正如黄金能试人。
Father Christmas is very kind-hearted.
圣诞老人心肠很好。