tribal tribute trigger triple tri-state triumph trivial tropical truce tuition turbulent ultimate ultrasound unbridled unconfined undergo underlie underline underlying undermine underscore undertake underwrite undeterred undue unearth unequivocally uneven unification uniform uninitiated unionization unique unleavened unobtrusive unparalleled unprecedented unprocessed unreimbursedtribal [ 'traibl ] adj.部落的,宗族的 tribute [ 'tribju:t ] n.礼物,贡品 trigger [ 'trigə ] n.扳机; v.引发,导致 triple [ 'tripl ] v.三倍于;n.三个一组 tri-state [ 'trai'steit ] adj.三州(间地区)的 triumph [ 'traiʌmf ] v.胜利,成功 trivial [ 'triviəl ] adj.琐屑的,微不足道的 tropical [ 'trɔpikl ] adj.热带的 truce [ tru:s ] n.休战(协定),停战(协定) tuition [ tju:'iʃn; tu:'iʃn ] n.学费 turbulent [ 'tə:bjulənt ] adj.狂暴的 ultimate [ 'ʌltimət ] adj.最终的,结果的 ultrasound [ 'ʌltrəsaund ] n.超声(波) unbridled [ ,ʌn'braidld ] adj.放纵的,无约束的 unconfined [ ʌnkən'faind ] adj.未予限制的,自由的 undergo [ ,ʌndə'gəu ] v.经历,经受;忍受 underlie [ ,ʌndə'lai ] v.位于…之下;成为…的基础或依据 underline [ ,ʌndə'lain ] v.强调,加强 underlying [ 'ʌndə'laiiŋ ] adj.在下面的;根本的,基础的 undermine [ ,ʌndə'main ] v.破坏,削弱 underscore [ ,ʌndə'skɔ: ] v.强调 undertake [ ,ʌndə'teik ] v.采取;接受 underwrite [ ,ʌndə'rait ] v.承诺支付;给…保险 undeterred [ ,ʌndi'tə:d ] adj.未受阻的 undue [ ,ʌn'dju:; ,ʌn'du: ] adj.过度的,不适当的 unearth [ ʌn'ə:θ ] v.出土 unequivocally [ ,ʌni'kwivəkəli ] adj.不含糊的;明确的 uneven [ ʌn'i:vn ] adj.不规则的,不平坦的 unification [ ,ju:nifi'keiʃn ] n.统一;联合 uniform [ 'ju:nifɔ:m ] n.制服; adj.统一的;相同的 uninitiated [ ,ʌni'niʃieitid ] adj.外行的,缺乏丰富知识的 unionization [ ,ju:niənai'zeiʃn ] n.联合,组织工会 unique [ ju:'ni:k ] adj.唯一的;独特的 unleavened [ ,ʌn'levnd ] adj.未经发酵的 unobtrusive [ ,ʌnəb'tru:siv ] adj.不显著的,不引人注目的 unparalleled [ ʌn'pærəleld ] adj.无比的,空前的 unprecedented [ ʌn'presidentid ] adj.前所未有的,史无前例的 unprocessed [ ,ʌn'prəʊsest ] adj.未加工的 unreimbursed [ ,ʌn'ri:im'bə:sd] adj.未偿(付,赔)还