潜伏期

incubation period (of disease)

hidden / secret / latent / to hide / to conceal / to submerge / to dive

to hide / to cover up / to conceal

surname Fu

to lean over / to fall (go down) / to hide (in ambush) / to conceal oneself / to lie low / hottest days of summer / to submit / to concede defeat / to overcome / to subdue / volt

variant of 期[qi1] / period / cycle

a period of time / phase / stage / classifier for issues of a periodical, courses of study / time / term / period / to hope / Taiwan pr. [qi2]