Ptyalin
n. 唾液淀粉酶\\n[化] 唾液淀粉酶
🗣️ 情景例句
Yes, we have. For how many?
有，要几张？
You're sure of passing the exam if you work hard.
只要用功，主汪定能考及格。
Is that tin of tobacco for me?
那听烟丝是给我的吗？