un·der·manned /ˌʌndɚ/
  (a.)人手不足的,人員不足的,船員不足的
  Un·der·manned a. Naut. Insufficiently furnished with men; short-handed.
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  undermanned
       adj : inadequate in number of workers or assistants etc.; "they're
             rather short-handed at the moment"; "overcrowded and
             understaffed hospitals" [syn: short-handed, short-staffed,
              understaffed]