Protheobromine
[化] 丙可可碱
🗣️ 情景例句
It sounds so nice.
很好听。
How long will your offer hold good?
一般你们报盘的有效期是多长？
One day a letter from my father arrived at the school, asking for a teacher for me.
有一天，我父亲的信寄到学校，请求为我聘用一名教师。