单词：valid
[经] 有效的
s. still legally acceptable
考试类型：[高考/四级/六级/考研/托福]
valid的用法和样例：
例句
- Please provide a valid screen name.请输入有效的显示名。
- A credit card is not a valid proof of identity.银行发的支票保付卡不是有效的身份证明文件。
- Whether or not you believe the lawsuit is fair or valid, it is vital that you act on the summons.无论这起诉讼是否是公平的或者是有根据的，认真对待传票对当事人来说是至关重要的。
- The values may be valid,but are not allowed contextually.提供的值可能是合法的，但是在当前的上下文环境中不被允许。
- Illness is a valid excuse for being absent from work.生病是不去上班的正当理由。
常见句型
- Do you have valid reasons for your absence?你的缺席有正当理由吗?
- He has a valid passport.他有有效护照。
- This is a valid will.这是一份具有法律效力的遗嘱。
- His excuse was not valid.他的借口站不住脚。
- Is this contract valid?这份合同有法律效力吗?
- This railway ticket is valid for three days.这张火车票的有效期是三天。
词汇搭配
- valid round有效弹
- valid hit刺中或劈中有效...
- valid name有效名
- valid shot有效发
- valid marriage有效婚姻
- valid input有效输入
- valid obligation有效债务
- valid evidence确凿的证据
- valid certificate有效证书
- valid contract有效的契约
- valid time有效预见期
- data valid有效数据
- valid argument正确的论点
- valid genus有效属
- valid formula永真公式,有效公式...
- valid approximation允许近似值
- valid function有效功能, 有效函数...
经典引文
According to law,..many..documents are not legally valid unless they be stamped.
出自：W. S. JevonsA Eurocheque book...means you can write a cheque valid in any currency in Europe.
出自：Amiga Computing
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