法律体系是根据其自身的有效性标准而有效的规则体系。
A legal system is a system of rules which are valid according to the system's own criteria of validity.
We are all susceptible to biases, even when we think we're being perfectly rational.
The beauty of a woman is not in a facial mode but the true beauty in a woman is reflected in her soul. It is the caring that she lovingly gives the passion that she shows. The beauty of a woman grows with the passing years.
Battery recycling is a key link in the sustainable development of the new energy industry.
城市是人类最伟大的发明，建筑师必须服务于它的演变。
