律师仔细审查了遗嘱的内容。

The lawyer carefully reviewed the ___contents of the will.

在第一节课上，老师解释了规则和课程内容。

In the first lesson, the teacher explained the rules and the ___contents of the course.

你能简要描述这本书的内容吗？

Can you briefly describe the ___contents of the book?