Dihydrosphingosine
二氢(神经)鞘氨醇
🗣️ 情景例句
I'm really sorry to hear about that.
听到这个消息真让我感到难过。
They are used to seeing him every day.
他们习惯了每天见到他。
We have all experienced days when everything goes wrong.
我们大家都有过事事不顺心的日子。