Morpholinyl
(2-或3-)吗啉基
🗣️ 情景例句
He is still unable to express himself in English.
他仍然不能用英语表达自己的意思。
Messengers should neither be headed nor hanged.
两国相争，不斩来使。
On the way home, my wife said to me, 'Don't drive so quickly! You're not Billy Stewart!'
“别开得这样快！你可不是比利。斯图尔特！”