名词形式是
weakness
英 [ ˈwiːknəs ]
美 [ ˈwiːknəs ]
虚弱,软弱常用释义
释义
n.
虚弱,软弱缺点,不足疲软癖好,嗜好,宠爱
变形
复数weaknesses  
例句
1、 His only weakness is his temperament.
他惟一的弱点是他的脾气。
2、 If she has any weakness, it is her Italian.
如果要说她有什么缺点,那就是她的意大利语不大行。
3、 She was plagued by weakness, fatigue, and dizziness.
她被虚弱、疲劳和眩晕折磨。