The policy is perfectly clear and I see no reason to suppose that it isn't working.

这项政策非常明了，我看不出有何理由认为它行不通。

《柯林斯英汉双解大词典》

Isn't this perfectly clear?

这难道还不明白吗？

《新英汉大辞典》

It was perfectly clear to me what I ought to do.

我应该怎么做其实非常清楚。

youdao

Jewel's first Country album, "Perfectly Clear," reached Number One on Billboard's Country chart.

VOA: standard.2010.07.13

Archie, of course, can't stand this because for him it's perfectly clear that a rhetorical question is a rhetorical question.

阿齐当然无法忍受，因为对他来说,很明显修辞问句就是修辞问句。

耶鲁公开课 - 文学理论导论课程节选

The records make it perfectly clear that the kingdoms of Pylos and Knossos were bureaucratic monarchies of a type unexpected in Greece, but in many ways similar to some contemporary and earlier kingdoms in the eastern Mediterranean.

记录清晰地表明皮洛斯和,科索诺斯王国,是不同于希腊的君主专制政体,但在很多地方类似于,一些同期和早期的地中海东部的王国

耶鲁公开课 - 古希腊历史简介课程节选

Now to be perfectly clear, my intention is to trade these stocks until Wednesday morning.

FORBES: Trading the Obama Speech

In the S-1 filings many prospective investors disregarded, Mark Zuckerberg made it perfectly clear.

FORBES: Mark Cuban Gets Facebook; Most Others Don't

VestGuard UK makes it perfectly clear that this insert isn't intended to save your tablet from damage.

ENGADGET: VestGuard UK Ballistic iPad Panel test: can this slate stop a bullet or two? (video)