资料来源 : pyDict

延长; 拉长

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Lengthen \Length"en\ (-'n), v. t. [imp. & p. p. {Lengthened}
   (-'nd); p. pr. & vb. n. {Lengthening} (-'n*[i^]ng).]
   To extent in length; to make longer in extent or duration;
   as, to lengthen a line or a road; to lengthen life; --
   sometimes followed by out.

         What if I please to lengthen out his date. --Dryden.

资料来源 : WordNet®

lengthening
     n : the act of prolonging something; "there was an indefinite
         prolongation of the peace talks" [syn: {prolongation}, {protraction},
          {perpetuation}]