专业英语八级

ubiquitous ugly ulcer ulterior ultimate ultimatum ultrasonic ultrasound ultraviolet umbrella umpire unabashed unabated unable unacceptable unaccountable unaffected unanimous unashamed unassuming unaware unawares unbearable unbecoming uncanny unceremonious uncertain uncharitable uncle uncomfortable uncompromising unconcern unconditional unconscious uncooperative uncouth uncover under underachieve underbrush undercharge underclass undercover undercut underdeveloped underdog underdone underestimate undergo undergraduate underground undergrowth underhand underlie underline underling undermine underneath underpass underprivileged undersell underside understand understandable understanding understate understudy undertake undertaker underwater underwear underworld underwrite undesirable undignified undo undoubted undue undulate unduly unearth uneasiness uneasy uneatable uneconomic uneducated unemployed unemployment unequivocal unethical uneven unexpected unfailing unfair unfaithful unfamiliar unfathomable unfold unforeseen unforgettable unfortunate ungainly ungodly ungracious ungrateful unhappy unhealthy unicorn uniform unify unilateral uninformed unintelligible uninviting union unique unisex unison unit unite united unity universal universe university unjust unkempt unkind unknown unlawful unleash unless unlike unlikely unlimited unlisted unload unlock unnatural unnecessary unnerve unobtrusive unoccupied unofficial unorthodox unpack unpalatable unparalleled unpleasant unplug unpopular unprecedented unpredictable unprejudiced unpretentious unprincipled unprofessional unqualified unquestionable unquestioning unravel unreal unreasonable unrelenting unremitting unrest unruly unscrew unseemly unsettle unsettled unsightly unskilled unsociable unsuspecting unswerving untenable untidy untie until untimely untiring untold untouchable untruth unusual unveil unwieldy unwilling unwind unwise unwitting unworldly up upcoming update upfront upgrade upheaval uphold upholster upkeep uplift upmarket upper upright uprising uproar upset upside upstairs upstart upstream upsurge uptown upward uranium urban urge urgent urinate urine us usage use used useful useless user usher usual usually usurer usurp utensil utilitarian utility utilize utmost utopia utter