1. 動詞
   lour第三者單數現在式:
   不及物動詞:
   (天氣、雲等)變得陰沈
   皺眉頭, 現出愁容
   悶悶不樂
   

   同義字詞
   darken,gloom,glower
   frown,glare,gloom,glower,scowl
   depress,drop,throw,throw down
   crash,decline,descend,dip,dive,drop,fall,nose-dive,plummet,plunge,sink,skid,tumble
   abate,de-escalate,decrease,dent,deplete,diminish,downscale,downsize,drop,dwindle,ease,knock down,lessen,reduce
   abate,de-escalate,decline,decrease,die (away or down or out),diminish,drain (away),drop (off),dwindle,ease,ebb,fall,fall away,lessen,let up,moderate,pall,phase down,ratchet (down),rachet (down),recede,relent,remit,shrink,subside,taper,taper off,wane
   abase,chasten,cheapen,debase,degrade,demean,discredit,disgrace,dishonor,foul,humble,humiliate,shame,sink,smirch,take down
   attenuate,break,cheapen,depreciate,depress,devaluate,devalue,downgrade,mark down,reduce,sink,write down,write off
   

例句

1. So I alas! shall never see The dawn of hope awake for me, Still as I turn, new storms appear, And darker lours this mental sphere.
2. How the shadows seem to fade on the dial-plate as the sky lours , and time presents only a blank unless as its progress is marked by what is joyous, and all that is not happy sinks into oblivion!
3. For the third time this greatest of Scottish Protestant heroes, whose name has lived for four centuries as the architect of Scottish religious life (not to say the strict bleakness of that life), whose statue in Edinburgh gazed balefully down on the meeting between pope and moderator of the General Assembly of the Kirk in 1982, and whose inordinately lofty statue in the Glasgow Necropolis lours at patients in the upper stories of the Royal Infirmary, made a strenuous effort not to return to his native country at all.