外交需要保持冷静和理智，不受情绪和个人偏见的影响。

It is a common experience that a problem difficult at night is resolved in the morning after the committee of sleep has worked on it.

The city is an addictive machine from which there is no escape.

穷人常常不得不做出比富人更复杂的财务决策。

声音不仅仅是一种乐器；它是心灵的表达。