puzzling question造句怎么写

In the course of the difficult, cyclic repetition of life, the puzzling questions of self are being answered.

There are four further categories in Taylor's classification in which the principle behind the puzzling question is an enumeration of details rather than the description of a recognizable item.

The relation between strength and deformation of rock and soil is explained in simple terms. Some puzzling questions are discussed and possible explanations are given.