但没有这种自由，即随心所欲地支配我们所愿的一切。

对不起妈妈，我从没想过要伤害你。我从没想过让你哭泣，但今晚我要清理我的衣橱。

投建营一体化是基础设施发展的未来趋势。

The speed of change is such that we have to run faster just to stay in the same place.

Then by your side,no bed-room me deny.

The discovery of stars orbiting the supermassive black hole at the galactic center was a turning point in astrophysics.

The trade-off between bias and variance is a fundamental concept in machine learning.