expounds

v.详细说明；阐述；解释

Laws are a dead letter without courts to expound and define their true meaning and operation. 法律如果没有法院来详细说明和解释其真正意义和作用，就是一纸空文。

Secondly, I expound the trend and reason for the administration legislates. 其次，阐述了行政立法的发展趋势及成因。

Laws are a dead letter without courts to expound and define their true meaning and operation. 法律如果没有法院来详细说明和解释其真正意义和作用，就是一纸空文。

He even stops at one moment to expound on a business book that looks at the roles of Newtonian physics and chaos theory in corporations. 他有时候甚至会停下来，对一本探讨牛顿物理学和混沌理论在企业中作用的商业书籍详加解释。