undercurrent

n.潜流

under the charge of, under the heel of, under the order of, under way, under-, under-secretary, under-sexed, under-side, underachieve, underachiever, underact, underarm, underbelly, underbid, underbrush, undercarriage, undercharge, underclothes, undercoat, undercover, undercut, underdeveloped, underdog, underdone, underestimate, underexpose, underexposure, underfed, underfelt, underfloor, underfoot, undergarment, undergird, undergo, undergraduate, underground, undergrowth, underhand, underhanded, underlay,