Cth
[医][=ceramide trihexoside]三己糖酰基鞘氨醇
🗣️ 情景例句
Sorry to be a pest.
不好意思打扰你。
He that boasts of his own knowledge proclaims ignorance.
夸耀知识实乃无知。
I'm tired of working all day.
整日工作使我厌烦。