有效

The ticket is good for one month.

这票一个月内有效。

Dark glasses are an effective shield against the glare.

墨镜能有效地遮挡强光。

I can’t claim infallibility for this method.

我不敢说这方法绝对有效。

These tickets are available for one month.

这些票有效期一个月。

It was said that washing powders containing enzymes remove stains more efficiently.

据说加酶洗衣粉除污更有效。

Quinine is an effectual preventive for malaria.

奎宁是有效的疟疾预防药。

Kate's perverse decision not to cooperate held good.

凯特执意不合作的决定仍然有效。

Will you be able to prosecute your responsibilities effectively?

你能有效地履行职责吗?

They are almost as expeditious and effectual as Aladdin’s lamp.

他们几乎像如意神灯那么速有效。

Your problem lies in lacking efficient methods.

你的问题在于缺少有效的方法。

Local authorities have to learn to allocate resources efficiently.

地方政府必须学会有效地分配资源。

This guarantee is valid for one year.

这份保证书有效期为一年。

The tests have been shown to be of dubious validity.

这些试验的有效性已显得令人怀疑。

This tonic will work miracles for your depression.

这种补药对治疗你的忧郁症十分有效。

The evaluation indesxes are the times of correct and omissive judgements.

有效评价指标是正确判断次数和漏判次数。

The worker oils the machine to operate it more efficiently.

工人给机上油以使机更有效。

She had used the profits to good purpose and upgraded their software.

她有效地利用盈利，升级了他们的软件。

It is suggested that CSI is an effective anticonvulsive drug.

复方东莨菪碱注射液为一有效抗惊厥药物。

Its ether extract contains Isopsoralen and Bergapten.

香豆素类应为五指毛桃的有效部位之一。

In order to validate the agreement, both parties sign it.

为使协议有效, 双方在上面签了字。