Phytosphingosine
植物鞘氨醇, 4-羟双氢(神经)鞘氨醇
🗣️ 情景例句
Hi, Son.
嗨 儿子。
I did homework lat night.
我昨晚做家庭作业。
We're having a special showing next week in our showroom.
下周我们的展示室将有一个特别的展示会，