Sepcete
薄膜型液相色谱填充剂
🗣️ 情景例句
She takes her exams next week, so she's burning the midnight oil.
她下周要考试，所以在开夜车。
Just a minute and I'll see if there are any flights.
等一下，我来看看有没有班机。
You're suffering from an allergy?
你过敏吗？