weakness是可数名词，weaknesses中文意思是n. 劣势，弱点；[审计]薄弱环节（weakness 的复数形式）
These weaknesses negated his otherwise progressive attitude towards the staff.这些缺点抹***了他本来对工作人员的开明态度。
We are learning to step back from ourselves and identify our strengths and weaknesses.
可数。复数形式是:weaknesses
软弱;虚弱;疲软;衰弱;懦弱;(系统、性格等的)弱点，缺点，不足;(对人或事物的)迷恋，无法抗拒。
