5.(failing)(人性格上的)缺点, 弱点
His only weakness is his temperament.他唯一的弱点就是他的急躁脾气。
6.(deficiency)缺陷；弱点；弱项；不足；漏洞
a major weakness in the Government's drug strategy政府在禁毒策略方面的漏洞
the strengths and weaknesses of sth…的优点和缺点
7.weakness in sth
(poorness of sth)在…方面的不足
There's some weakness in their teaching ability.他们的授课能力有些欠缺。
8.(self-indulgence)嗜好；癖好