adj.有传染性的,传染病的,有感染力的,会蔓延的
Scarlet fever is highly contagious.
猩红热的接触传染性很强。
It's a highly contagious infection.
这种病极易传染.
Antonio has a contagious enthusiasm for the beautiful aspect of food.
安东尼奥对食品赏心悦目这一方面的热情非常有感染性。