The weather was at its worst; bitterly cold, with leaden skies that gave minimum visibility.

天气极其恶劣。寒风刺骨，天色晦暗，能见度极低。

《柯林斯英汉双解大词典》

It was Microsoft at its worst.

这个广告的最大受害者正是微软。

youdao

This is WUSS behavior at its worst.

这是懦夫最糟糕的举动。

youdao

There he saw life at its worst, especially in a very poor part of New York which was known as Mulberry Bend.

VOA: special.2010.08.01

It is at its worst after retirement ... when you are no longer-- you've exhausted your human capital and you're living off of all the accumulated physical capital.

退休后，到达顶峰,当你不再-,你用尽了你的人力资本,只能以之前积累下来的,有形资本为生。

耶鲁公开课 - 金融市场课程节选

At its worst, the crisis affected nearly a third of world air travel.

VOA: special.2010.04.23

At its worst, the only way to revive it was to perform a hard reset.

ENGADGET: IRL: HTC 8X, Google Now and the iPod shuffle

At its worst, inside-out thinking distracts companies from their true purpose of driving customer value.

FORBES: The Value Of An 'Outside-In' Strategy

According to Transparency International, Chinese people say corruption is at its worst in the private sector.

CNN: China's new president in corruption battle