uproar

n.骚动，喧嚷，扰乱

uphold, upholder, upholster, upholsterer, upholstery, UPI, upkeep, upland, uplift, upon, upper, upper case, upper-cut, uppermost, uppish, upraise, upright, upright piano (also upright), uprightness, uprising, uproarious, uproariously, uproot, upset, upshot, upside, upside down, upside-down, upstage, upstairs, upstanding, upstart, upstream, upsurge, upswing, uptake, uptight, uptown, upturn, upturned,