mainly due to造句怎么写

The management book as it looks today is mainly due to past restrictions regarding printing and media.

This is mainly due to concerns about the drugs' illicit use and trafficking, and a lack of training among medical personnel on how to administer them.

"Excessive gains in prices are mainly due to a shortage of supply, and a major part of the demand for housing is due to unreasonable demand," Qi said.

The advances in this region are mainly due to significant improvements in health and education.

Most of the time, a relationship is not mainly due to one side's mistakes or mistakes, but the wrong way to admit it.