Some functional products such as apparel and electronic devices cannot be tried or tested online.

许多功能性产品，例如衣服、电子产品无法在网上试穿或是试用。

youdao

Or tested a campaign so briefly, because you had little confidence in yourself that you could make it work?

或者因为对自己能否让测试卓有成效缺乏信心，所有就很简单地对广告进行了一番测试？

youdao

Avoid placing ticks in black film containers or using cellophane tape to mount the tick to paper, a note card or a slide if it needs to be identified or tested.

应当避免将蜱虫放在被黑膜覆盖的容器里或用透明胶将蜱虫固定在纸上；假如需要对咬过你的蜱虫进行鉴定或者检验，那么还需要在容器上贴一个便条或者卡片。

youdao

If they had, they would have been tested to see if they needed treatment to prevent an infection like H.I.V.or hepatitis.

VOA: special.2010.02.10

Cloves were the most effective at calming inflammation of any spice or herb they tested.

VOA: special.2010.06.01

Developing such a reactor could take a long time because none have been built or tested yet.

BBC: China and Bill Gates discuss nuclear reactor plan

As well, actual systems or tested theories on leadership are difficult to find.

FORBES: The End of Leadership--at Least As We Know It!

We have reviewed or tested nearly every type of single-use hot cup on the market, but a viable alternative does not yet exist.

FORBES: The Final Year Of Mayor Bloomberg's Term Is Poised To Be The Most Dangerous