Erethin
[医] 兴奋素(结核菌素毒质)
🗣️ 情景例句
Oh, this is my father. He's a doctor.
噢， 这是我父亲， 他是一名医生。
Did you go to the zoo this morning?
你今早去动物园了吗？
Yesterday, a pigeon carried the first message from Pinhurst to Silbury.
昨天，一只鸽子把第一封信从平赫特带到锡尔伯里。