Paratuberculin
副结核(杆)菌素
🗣️ 情景例句
He is liked very much because of his courtesy.
他由于彬彬有礼而颇获好感。
Repetition is the mother of knowledge.
反覆学习是知识之源。
Where are your smaller computers?
你们的小型电脑在那里？