legal cause

例句：

1. 1. The company's decision was based on a legal cause.
   公司的决策是基于一个合法的依据。
2. 2. The lawyer argued that the client had a legal cause for their actions.
   律师辩称，客户的行为有合法的依据。
3. 3. The case against him was based on a legal cause.
   针对他的案件是基于一个合法的依据。