Polylysine
n. [生化]多熔素
🗣️ 情景例句
Sometimes he's very sad.
他有时很忧悒。
He's been out of a job for months.
他已经失业好几个月了。
But I must ask my parents first. What time shall I come?
不过我必须先问问父母。我几点钟来呢？