weak·ling /ˈwiklɪŋ/
  虛弱的人,病弱者,懦怯者(a.)虛弱的,懦弱的
  Weak·ling n.  A weak or feeble creature.  --Shak. “All looking on him as a weakling, which would post to the grave.” --Fuller.
     We may not be weaklings because we have a strong enemy.   --Latimer.
  Weak·ling, a. Weak; feeble.
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  weakling
       n : a person who is physically weak and ineffectual [syn: doormat,
            wuss]