效力

In a sentence

• 这个协议在法律上具有效力。

  This agreement has legal effect.

  Here, '效力' specifically refers to the binding legal force or authority that the agreement possesses in the context of law.

• 最新的加密技术对提高网络安全性有很大的效力。

  The latest encryption technology greatly enhances the efficacy of network security.

  In this case, '效力' indicates the effectiveness or impact of the encryption methods in improving security.

• 他效力于一家国际知名的律师事务所。

  He works for a renowned international law firm.

  Here, '效力' means to work for or serve in a particular capacity, usually as an employee or member of an organization.