他们的安全安排中确实存在弱点。

There are definite ___weaknesses in their security arrangements.

作为经理，他的主要弱点是他无法委派任务。

His main ___weakness as a manager is his inability to delegate.

后期小说没有显示他早期作品的任何弱点。

The later novels show none of the ___weaknesses of his earlier work.