查词 - valid

valid

ˈvælɪəd adj

1 a valid ticket, document, or agreement is legally or officially acceptable 有效的; 正式认可的;

a valid credit card

有效信用卡

Your return ticket is valid for three months.

你的往返票有效期为三个月。

2

valid reason/argument/criticism etc

a reason, argument etc that is based on what is reasonable or sensible 合理（正当）的理由/论点/批评等

Police officers must have a valid reason for stopping motorists.

警察拦下驾车司机必须有正当理由。

3 a valid PASSWORD , ID etc is one that will be accepted by a computer system 系统认可的;

I would question the validity of that statement.

我质疑那个声明的合法性。