"viruses and other infective agents"
"a carrier remains infective without himself showing signs of the disease"
"fear is exceedingly infectious; children catch it from their elders"
"infectious hospital"
"infectious disease"
来自柯林斯例句
来自柯林斯例句
来自《权威词典》
来自《简明英汉词典》
来自《简明英汉词典》