A:Was a law amended or repealed easily?

　　法律能轻易地被修改或废除吗？

　　B:A law should be amended or repealed only by the same procedures that were used to enact it.

　　法律只有经与其颁布程序同样的程序，方能被修改或废除。

　　He can work in the company only when he passes the exam.

　　只有通过了考试他才可以在公司工作。

　　The students learn more skills only when universities have strengthed employment guidance for the students.

　　只有学校加强就业指导学生才能学到更多的技术。

　　You will obey the law only when you know the law.

　　只有了解了法律你才能遵守法律。

　　延伸阅读:

　　A:Does a legislature support a legislative inquiry?

　　立法机关可以进行立法调查吗？

　　B:A legislature has many of the same powers as a court to support a legislative inquiry.

　　立法机关具有许多与法院相同的权力以进行立法调查。

　　A legislature has many of the same rights as a court to support a legislative inquiry.

　　立法机关具有许多与法院相同的权力以进行立法调查。

　　You have the power to replace the heating system.

　　你有权利替换供暖系统。

　　You have the right to replace the heating system.

　　你有权利替换供暖系统。