latent period

period between catching a disease and the appearance of symptoms （疾病的）潜伏期.

lass, lassitude, lasso, last, last but not least, last name, last will and testament, lasting, lastly, lat, latch, latchkey, latchkey child, late, latecomer, lately, latency, latent, latent heat, latent image, later, lateral, lateral thinking, laterite, latest, latex, lath, lathe, lather, Latin, Latin America, Latin cross, Latinist, latish, latitude, latitudinal, latitudinarian, latrine, latter, latter-day,