Morpholinyl
(2-或3-)吗啉基
🗣️ 情景例句
I'm going to miss her,
我会想念她，
We always open Christmas present on Christmas morning.
我们通常在圣诞节早晨打开圣诞礼物。
Hello. Could I speak to Pat, please?
喂，请帕特听电话好吗？