One of the most promising schemes has been tried in Florida.

最有希望的计划之一已经在佛罗里达州进行了试验。

youdao

On the occasions when hunting has been tried, local animal rights people have worked to secure court orders against the hunts.

当有人尝试狩猎时，当地的动物权利保护人士就会努力争取法庭指令，反对捕猎。

youdao

Showing news stories on a timeline has been tried before.

过去，人们曾试过以一条时间轴来显示新闻故事。

youdao

Demjanjuk has been tried before for alleged Nazi-era crimes.

VOA: standard.2009.11.30

I've tried a few times to coordinate things, but he has been too busy,

我试着把事情协调过几次，但是他太忙了，

我尊敬的教授 - SpeakingMax英语口语达人

He has tried to forgive people for what they have done wrong. And this is what he has been criticized for."

VOA: standard.2010.04.04

He has been tried and convicted in Panama for murder, embezzlement, and corruption in absentia.

CENTERFORSECURITYPOLICY: Victory for Chavez in Panama?

So far the scheme has been tried out among a couple of hundred Kenyan families.

ECONOMIST: Monitor

That idea has been tried before in many parts of the world, but with little success.

ECONOMIST: Policymakers can help create jobs, up to a point