a.  公正的，正当的，合理的 ≈ valid/justifiable

a.  合法的，法律许可的，依法的 ≈ legal

a. 〔子女〕合法婚姻所生的，婚生的 ≠ illegitimate

• legitimacy  n. 合法；合理；正统

• Ask their children to use legitimate medicines. 合法的药物

• “I think this is a very legitimate concern, and I appreciate their drawing our attention to it,” David Hill, a father of five, says. 很合乎情理的担心

• That’s a perfectly legitimate question. 那个问题完全合乎情理。

• Their business operations are perfectly legitimate. 他们的商业活动完全合法。

• Is his business strictly legitimate? 他的生意是否绝对合法？

BrE /əˌbriːviˈeɪʃn/