作为一个乐观主义者的关键是辨识任何处境下的好处和可能性，知道情况永远都可能会更糟。

The key to being an optimist is recognizing the benefits and possibilities of any situation, and understanding that it could always be worse.

youdao

盖尔把画板带回了家，她把画板放在自己的卧室，放在孩子够不着的地方，因为一次轻轻的触碰都可能使上面的字迹永远消失。

Then she and her daughter took it home. Gail put it in her bedroom, out of the kids' reach-one light touch and the message might vanish forever.

youdao

任何一个时刻，都可能将你的生活永远地改变。

At any moment, your life can change forever.

youdao

It can never be a kind of cosmopolis, a world state or even a league of states or nations.

它永远不可能成为国际都会或世界之都，或甚至是国联或族联。

耶鲁公开课 - 政治哲学导论课程节选

So, you already have a hint that methyl groups are never in the middle, they always have to be on the outside.

那么，你已经得到了一个提示,那就是甲基永远都不可能在中间，它们总是在外侧。

麻省理工公开课 - 化学原理课程节选

The reason it looks like a tautology, because you look around, nothing seems to have its velocity forever.

其原因听起来像是绕圈子,因为你看看四周,似乎一切都不可能永远运动下去

耶鲁公开课 - 基础物理课程节选