The new order, signed by CDC Director Robert Redfield Tuesday, will become effective on Jan. 26.

这项新命令由疾控中心主任罗伯特·雷德菲尔德在周二签署，将于1月26日生效。

As a result, the United States announced its official withdrawal from the WHO effective on July 6, 2021.

因此，美国宣布从2021年7月6日起正式退出世界卫生组织。

So are they most effective on women?

那么它们对女性最有效吗？

Are they most effective on people of color?

它们对有色人种最有效吗？

The greatest wisdom not applied to action and behavior being effective, on his being able to achieve is meaningless data.

即便是最了不起的智慧，如果不将其应用到实践中去，那也只是毫无意义的一堆资料而已。

Are they most effective on people of different gender expressions?

它们对不同性别表达的人最有效吗？

So what demographic is it mostly effective on?

那么它对哪些人群最有效？

One experimental vaccine has been shown to be 100 percent effective on humans. Hari Sreenivasan has the story.

一种实验性疫苗已被证明对人类 100% 有效。 Hari Sreenivasan 有这样的故事。

It's our first instinct, but actually, although punishment sometimes is effective, on its own, it is not enough.

这是我们的第一直觉， 但实际上，尽管惩罚有时是有效的，但仅靠其本身是不够的。

Dentists say the new method is most effective on early-stage cavities. The whole treatment lasts about as long as a normal drill-and-fill visit.

牙医表示，这种新方法用于早期蛀牙效果最佳。整个治疗过程与传统钻孔填充修补所用的时间大致相同。

This year, Celtic plans to try it on people with several different sorts of cancer, since the firm's researchers believe it should be effective on all solid tumours.

今年他们计划对患有不同种癌症的患者进行治疗，因为公司的研究人员相信治疗固体肿瘤很有效果。

Researchers are still debating if that's generally true, but other studies have found that strategies that work for younger kids aren't as effective on teenagers after eighth grade or so.

研究人员仍在争论这是否普遍正确，但其他研究发现，适用于小孩子的策略，对于大约八年级左右的青少年来说并没有那么有效。

Some experts say Qatar's withdraw from OPEC probably won't have a major effective on the oil market but others say it could cause complications within OPEC. But why is Qatar leaving?

一些专家说，卡塔尔退出石油输出国组织可能对石油市场不会产生重大影响，但也有人说，这可能会在石油输出国组织内部引起麻烦。 但是卡塔尔为什么要离开？