Pathogens
病原体(物)
🗣️ 情景例句
Will you come over to help me with the tough job?
您能否来帮助我做这项艰苦的工作？
How much will it cost?
这种商品成本价是多少？
For hundreds of years, St.Bernard dogs have saved the lives of travellers crossing the dangerous Pass.
几百年来，圣伯纳德修道院驯养狗拯救了许多翻越这道山口的旅游者的生命。