lengthening
延長; 拉長
Length·en v. t. [imp. & p. p. Lengthened p. pr. & vb. n. Lengthening ] 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.
lengthening
n : the act of prolonging something; "there was an indefinite
prolongation of the peace talks" [syn: prolongation, protraction,
perpetuation]