Biotin
n. 生物素\\n[化] 生物素; 维生素H
🗣️ 情景例句
Don't ask why; just do as you are told.
别问为什么， 按要求去做就行了。
We'll sign two originals, each in Chinese and English language.
我们将要用中文和英语分别签署两份原件。
Look at this letter from Wang Wei to her penfriend in Australia.
请看这封王伟写给她在澳大利亚的笔友的信。