virus/'vaɪərəs $ 'vaɪr-/

n. a very small living thing that cannot be seen with eyes and causes diseases

n. [C] 病毒：the Aids/flu virus 艾滋病/流感病毒

◇Is the illness caused by bacteria or a virus? 这种病是由细菌还是病毒引起的？

音组-rus/-rəs/

chorus; virus