Just like that, she was gone.

"The challenge is to make the invisible visible."

创新是企业发展的永恒动力，我们必须持续推动科技创新和管理创新，才能在激烈的市场竞争中立于不败之地。

损失规避

后街男孩一直专注于音乐和粉丝。

作家必须甘于冒险。

The world is full of hidden connections.

For in the final analysis, our most basic common link is that we all inhabit this small planet. We all breathe the same air. We all cherish our children's futures. And we are all mortal.

置信区间理论提供了一种不同于点估计和假设检验的估计未知参数的方法。