The concept of legal validity is crucial for understanding the nature of law.

饥饿天使是一个隐喻，饥饿如影随形地跟踪着你。

The only way to avoid being miserable is not to have enough leisure to wonder whether you are happy or not.

忠于你的热情。

Cheerfulness is the best promoter of health.

He strolled like a man in the park without a care or a worry in the world. Like he had>

最重要的是保持对客户的痴迷。

市场失灵的程度并不是政府干预的充分条件。