Bombycin
蚕素
🗣️ 情景例句
You look very familiar. Have we been introduced before?
你看起来很面熟，我们以前互相介绍认识过吗？
To study in school
在学校读书
Well, would you like something to drink? What about a glass of milk?
你想喝些什么吗？要不要一杯牛奶？