Sphingomyelin
n. [生化](神经)鞘磷脂
🗣️ 情景例句
Long time no see.
好久不见。
This man is directing the movie.
那个人从事电影导演工作。
He did very badly on the exam----worse than expected almost the worst in the class.
他考的不好，比期望的还糟。几乎是全班最差的。