有效

The pill is the most efficient method of birth control.

服用避孕药是最有效的避孕方法。

Condoms are an effective method of birth control if used with care.

如果使用得当，避孕套是很有效的避孕手段。

A united effort is always more effective than an isolated complaint.

联合行动总是比单个人抱怨更有效。

Many remedies effective in joint disease are primarily diuretic.

许多对关节病有效的药品主要含有利尿成分。

Make a note of credit card numbers and check expiry dates.

记下信用卡卡号，核对有效期限。

Politically speaking, do you think that these moves have been effective?

从政治角度来说，你认为这些举措有效吗？

The Supreme Court says that the convictions can stand.

最高法院说判决结果依然有效。

She had effectively shut him out by refusing to listen.

她拒不听他说话，并以此有效地将他排除在外。

The contract was to run from 1992 to 2020.

这份合同在1992年至2020年间有效。

The judge said that arbitration was a fair and expeditious decision-making process.

法官说仲裁是公平且迅速有效的判决过程。

The active ingredient in some of the mouthwashes was simply detergent.

某些漱口剂中的有效成分只不过是洗涤剂而已。

Roll on the day someone develops an effective vaccine against malaria.

盼望有一天有人会研制出一种能有效预防疟疾的疫苗。

For foreign holidays you will need a valid passport.

出国度假需持有效护照。

Alternative treatments can provide a useful back-up to conventional treatment.

替代疗法能为传统的治疗提供有效的辅助。

Although exceptions could be made, the rule still stands.

虽然可能有例外，但该规定仍然有效。