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1·All tickets are valid for two months.

所有的票在两个月内有效。《柯林斯英汉双解大词典》

2·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。《柯林斯英汉双解大词典》

3·This special offer is valid until the end of the month.

这个特价优惠月底前有效。《牛津词典》

4·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。《柯林斯英汉双解大词典》

5·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。《柯林斯英汉双解大词典》

6·This train ticket is valid for three days.

这张车票3日内有效。《新英汉大辞典》

7·You are in violation of the law—driving without a valid license.

你在没有有效驾照的情况下开车是违法的。

8·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。

9·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。

10·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。

有效

1·All tickets are valid for two months.

所有的票在两个月内有效。《柯林斯英汉双解大词典》

2·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。《柯林斯英汉双解大词典》

3·This special offer is valid until the end of the month.

这个特价优惠月底前有效。《牛津词典》

4·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。《柯林斯英汉双解大词典》

5·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。《柯林斯英汉双解大词典》

合法的

1·They have a valid claim to compensation.

他们有要求赔偿的合法权利。《牛津词典》

2·If you ever encounter these messages, ensure that the user or application connecting to the database has provided a valid user id and password.

如果遇到这样的消息，一定要确认连接到数据库的用户或应用程序是否提供了合法的用户ID和口令。

3·Enter a name for the entry as well as a valid user name and password to access the database.

为该条目输入一个名称，然后输入一个用于访问数据库的合法用户名和密码。

4·This function returns the size of the value buffer on success and 0 if the name specified is not a valid environment variable name.

如果成功，则此函数返回值缓存的大小，如果指定的名称并不是一个合法的环境变量名，则返回0。

5·Essentially, type safety means that a program cannot perform an operation on an object unless that operation is valid for that object.

本质上，类型安全性意味着，除非程序的操作对于类型是合法的，否则就无法在对象上执行操作。

正确的

1·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。

2·But the point is still valid: If a writer has the ambition to starve in a garret there is more opportunity than ever before.

但是我要说的要点还是正确的：如果一个作家有雄心在一个拥有着比过去更多的顶楼上饿死的话。

3·You may be asking yourself why this test will fail. After all, it is valid syntactically.

您可能会问这个测试为什么会失败，毕竟它的语法是正确的。

4·Certainly his main point is valid — you cannot be as careless in producing or editing XML as you would a simple text document, but this applies to all text formats with any structure.

当然其基本观点是正确的——不能像简单的文本文档那样随心所欲的生成和编辑XML，但是这种要求适用于所有有结构的文本格式。

5·XML documents are valid when the structure of the tags and their content is validated by an external schema file.

当 XML 文档的标记结构和内容得到外部模式文件的验证后，XML 文档就是正确的。

正当的

1·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。

2·The following program is also valid.

下面的程序也是正当的。

3·Lawson has been around long enough to see off pipsqueak MPs, even if their questions are, actually, quite valid.

劳森是老手了，能够赶走无足轻重的议员，尽管他们的问题实际上是非常正当的。

4·They may have valid reasons for wanting to avoid certain practices, and preferred practices may change over time.

他们可能有避免某些实践的正当理由，并且随着时间的过去喜欢的实践可能变更。

5·One might capture such information by observing the data generated for valid users of the system as it whizzes by on a wire.

当为系统的正当用户而生成的数据在导线中传输时，可以通过观测来获取这类信息。

有根据的

1·They live in their own namespaces, and a valid criticism of BPEL 1.1 is that real processes need too many of them.

它们只存在于它们自己的名字空间，BPEL 1.1的一个有根据的批评就是一个真正的过程需要太多的元素。

2·Ask yourself: is this fear valid?

问问自己：恐惧是有根据的吗？

3·The only way you can make your argument valid is if you put murder in, and that's because it begs the question.

能使你的论点有根据的唯一方法就是,你把凶手关起来，那是因为它需要问题。

站得住脚

1·He states the data on which the list is based is more than 25 years old, but I think it is still valid, since it matches pretty well with my experience.

他认为“这份列表虽然是基于25年前的数据，但我认为它依然站得住脚，因为它和我的经验太吻合了。”

2·This may be one of the most valid reasons why titanium watches are priced quite expensively.

这可能是其中一个最站得住脚的理由，钛手表的价格相当昂贵。

有依据的

1·That is perfectly valid. It satisfies a need to prove you have a good relationship with your mother.

这是完全有依据 的，有必要证明你和你的母亲关系良好。

(1)valid period有效期限

(1)valid certificate有效证书；有效凭证

(1)valid until有效期至

(1)valid data有效数据

(1)must be valid必须实事求是

(1)valid time有效时间