short·com·ing /ˈʃɔrtˌkʌmɪŋ, ˌʃɔrtˈ/
  缺點,不足
  Short·com·ing n. The act of falling, or coming short; as: (a) The failure of a crop, or the like. (b) Neglect of, or failure in, performance of duty.
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  shortcoming
       n : a failing or deficiency; "that interpretation is an
           unfortunate defect of our lack of information" [syn: defect]