1. 名詞
   不可數名詞: 無防禦, 無保護
   無法自衛
   手無寸鐵
   

   同義字詞
   susceptibility,vulnerability,weakness
   

例句

1. Only using the defenselessness is not enough.
2. The third component to the Law of Least Effort is defenselessness .
3. The criminal has to use the defenselessness AND the unsuspiciousness.
4. The situation of helplessness and defenselessness makes the locals dare not leave their homes.
5. Brazilian civilian and military authorities readily acknowledged the defenselessness of Northeast Brazil.
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