subdue          overcome， bring under control

　　submerge        put under water， liquid， sink out of sight

　　suborn          indice by bribery or smth to commit perjury

　　subpoena        written order requiring a person to appear in a low court

　　sullied         to be stained or discredited

　　superfluous     more then is needed or wanted

　　supersede       take the place of

　　supine          inactive， lying flat on the back

　　susceptibility  sensitiveness

　　sustain         keep from falling； maintain； suffer； give a decision

　　synopsis        summary or outline

　　taciturn        saying very little

　　talon           claw of a bird of prey

　　tamp            tap or drive down by repeated light blows

　　tarnished       lost brightness

　　taunt           contemptuous reproach， hurtful remark

　　tedious         tiresome

　　temperance      abstinence from alcohol， self-control， moderation

　　tenuous         thin， slender

　　terse           brief and to the point

　　thrift          care， economy， thriving， prosperous

　　timid           shy， easily frightened

　　tolerable       fairly good

　　tonic           smth giving strength or energy

　　topple          be unsteady and overturn

　　tortuous        full of twists and bends

　　tout            person who worries others to buy smth， to use his service

　　touting         act as tout

　　toy             think not seriously， handle absent-mindedly

　　tractable       easily controlled or guided

　　trend           tendency， general direction

　　trepidation     alarm， excited state of mind

　　turbulence      being uncontrolled， violent

　　underbid        make a lower bid then smb else

　　undermine       weaken gradually， at the base， make smth under

　　unfeigned       not pretended， sincere

　　unscathed       unharmed， unhurt

　　untoward        unfortunate， inconvenient

　　upbraid         scold， reproach

　　urbane          polite， elegant

　　vacillation     being uncertain， hesitating

　　vain            without use， value or result

　　valiant         brave

　　valorous        brave

　　vapor           stim， mist