All tickets are valid for two months.
所有的票在两个月内有效。
Our realty agent says the sales contract is valid.
我们的房地产代理人称该销售合同是有效的。
The court ruled that laws passed by the assembly remained valid.
该法庭裁定由议会通过的法律仍然有效。
A pharmacist can fill any prescription if, in his or her judgment, the prescription is valid.
一名药剂师可以供应任何处方上的药，如果他或她认为药方有效的话。
So it seems that these are valid criticisms of the environmental approach.
因此，看来这些都是对环境法的正当批判。
The London Travel Card is a paper ticket that is valid on all London public transport.
伦敦旅游卡是一张纸质票，在伦敦所有公共交通工具上都有效。
Gleason's arguments against climax and biome are largely valid against ecosystems as well.
在很大程度上，格里森反对顶级群落和生物群系的论点用来反驳生态系统同样很有效。
An analysis based on such assumptions could be valid for a highly competitive, individualistic society.
基于这种假设的分析可能对一个高度竞争、个人主义的社会有效。
All customers travelling on TransLink services must be in possession of a valid ticket before boarding.
所有使用联运服务的乘客在登机前必须持有有效机票。
They believed, correctly, that IQ tests are a valid method of evaluating children for special education classes.
他们相信，IQ测试是评估孩子是否适合特殊教育课程的有效方法，这是正确的。
If you have a solid base for your knowledge claims, then your knowledge structure is more likely to be strong, valid, true.
如果你的知识有坚实的基础，那么你的知识结构就更有可能强大、有效、真实。
You don't want to get to your destination only to find you have the wrong visa, or worse, that your passport isn't valid any more.
你不会想要等到了你的目的地却发现你带的是错误的签证，或者更糟糕的是，你的护照不再有效。
Descriptive grammarians have been presented as people who do not care about standards, because of the way they see all forms of usage as equally valid.
人们认为描述性语法的语法专家们不在意标准，因为他们认为所有语言用法都同样有效。
However, the idea that extraordinary creativity transcends established limits is misleading when it is applied to the arts, even though it may be valid for the sciences.
然而，非凡创造力超越既定界限的想法在应用于艺术时会产生误导，即使它可能对科学有效。
They have a valid claim to compensation.
他们有要求赔偿的合法权利。
They put forward many valid reasons for not exporting.
他们提出了许多有根据的理由来反对出口。
She had valid reasons for not supporting the proposals.
她有充分的理由不支持这些建议。
Any timekeeping system is valid, and each is as praiseworthy as its purpose.
任何计时系统都是有效的，每一种系统都和它的作用一样值得称赞。
You must show proof of a comprehensive health insurance valid in the target country for the entire period of the internship.
在整个实习期间，必须出示所在国家有效的综合医疗保险证明。
There are valid reasons boredom may feel so painful.
有充分的理由证明无聊会让人感到如此痛苦。
Those are all valid, but you need to take time to hear out your coworkers, too.
这些都是有道理的，但你也需要花时间听听同事们的意见。
Each of these philosophies is valid and, it has to be said, my son loves visiting his aunt's house.
这些道理都是正确的，而且不得不说，我的儿子很喜欢去他阿姨家玩。
Certainly, there are valid concerns about the patchwork regulations that could result if every state sets its own rules.
当然，有人担心如果每个州都制定自己的规则，那么就会产生拼凑起来的法规，这种担心不无道理。
For managers, this means that employees must have the capability of doing the job and must regard the appraisal process as valid.
"对管理者来说，这意味着，员工必须要有完成工作的能力，而且必须要认为这种评价过程是有根据的。
People can contribute experience or information to your thinking—all the things that would make the disagreement stronger or more valid.
人们可以为你的想法提供经验或信息，这些都可能会加剧分歧或使分歧更合理。
While travelling on an eTicket, one must carry one of the authorized valid Photo Identity Cards.
使用电子客票时，必须携带有效的已获授权拍照身份证。
They practice various things for overseas travel, only to realize that none of them has a valid passport.
他们为出国旅行实践了各种各样的事情，然而才意识到他们都没有有效的护照。
Have a valid, working password.
拥有有效的工作密码。
那么，有效状态如何定义？
他们是否有效可靠？
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