The severity of Russian laws is alleviated by the fact that it is not obligatory to execute them.

丰田生产系统是通过消除浪费来节约资源的框架。

The deepest wounds are often invisible to the naked eye.

建筑是一种责任，是对社会的责任。

代数分析很快让我们忘记了研究的主要对象，将注意力集中在抽象的组合上，直到最后我们才回到最初的目标。