infectiously

adv: laugh infectiously 笑得富有感染力.

infallibly, infamous, infamously, infamy, infancy, infant, infant prodigy, infant school, infanticide, infantile, infantile paralysis, infantilism, infantry, infantryman, infatuate, infatuated, infatuation, infect, infection, infectious, infectiousness, infelicitous, infelicity, infer, inferable, inference, inferential, inferentially, inferior, inferiority, inferiority complex, infernal, infernally, inferno, infertile, infertility, infest, infestation, infidel, infidelity,