This is a valid will.

Please supply a valid user password.

请提供一个有效的用戶密码.

He is charged with several misdemeanour, including driving without a valid licence and creating a disturbance.

他被控告犯有好几种轻罪, 其中包括无有效驾驶执照驾驶和扰乱治安.

Do you have valid reasons for your absence?

你的缺席有正当理由 吗 ?

His claim to own the house is valid.

他主张对此屋的所有权有效.

He did not accept this reply as valid.

他认为这个回答没有根据。

A pharmacist can fill any prescription if, in his or her judgment, the prescription is valid.

只要药剂师认定处方有效就可按方配药。

He recognized the valid points that both sides were making.

他认可双方观点中的合理之处。

Fewer than forty per cent voted— the threshold for results to be valid.

投票的人不到40%——投票结果无效。

For foreign holidays you will need a valid passport.

出国度假需持有效护照。

It is valid to consider memory the oldest mental skill, from which all others derive.

我们有理由认为记忆是最原始的心智技能，所有其他技能都在此基础上衍生出来。

All tickets are valid for two months.

所有的票在两个月内有效。

Most designers share the unspoken belief that fashion is a valid form of visual art.

绝大多数设计师都默认这样一种观点，即时装是视觉艺术的一种有效形式。

a bus pass valid for 1 month

公共汽车月票

All is fair in war.

兵不厌诈。

They asked me for my impressions of the fair tonight.

他们约请我今晚去谈谈对交易会的印象.

We stand a fair chance of success.

事情有八成啦.

Albeit fair, the girl was not sought after.

那姑娘虽然漂亮, 但不是被爱慕的女子.

The ball hit him fair in the head.

球不偏不倚,正打在他的头部.

Black hair is a sharp contrast to a fair skin.

黑色的头发与白皙的皮肤形成鲜明对比.

His decision was eminently fair.

他的判决非常公正.