The average density of interstellar material in the vicinity of our Sun is 1,000 to 10,000 times less than the best terrestrial laboratory vacuum.

在我们的太阳附近，星际物质的平均密度比最好的地球实验室真空还要低1000到10000倍。

youdao

The best tools of our age finally defeated this enemy who has been with us from pharaonic times.

我们时代的最佳工具最终击败了自法老时代以来一直与我们在一起的这一敌人。

youdao

As the mountains roll nearer, we abandon the air conditioning, woefully inadequate at the best of times, open the Windows and labrador-like, let the clean mountain air whip around our ears.

群山越来越近了，我们放弃了车里的冷气，这冷气在最需要的时候总是不足。我们打开车窗，像拉布拉多犬一样让清凉的山风吹拂我们的耳朵。

youdao

Nor will committing to liberty yield clear principles to gauge the best course of action on the various foreign policy challenges of our times--but it will make the loss of civil liberties that inevitably follows overseas adventurism a central part of the discussion.

FORBES: Uncommon Sense

Our global economy, global finance is surviving not the best of times.

WHITEHOUSE: President Obama's Bilateral Meeting with President Medvedev of Russia | The White House

"Our experience says the best time to grow, all else considered, is during times of recession, " says Mr. Nolan.

WSJ: Expanding Eateries Target Shuttered Sites