Definition: If you have to do something by law, it is illegal not to do it. Level: C1
雇主依法必须提供健康保险。
Employers are required to offer health insurance ___by ___law.
在许多国家，提交纳税申报表是依法要求的。
Filing tax returns is required ___by ___law in many countries.
企业依法必须展示其许可证。
Businesses must display their license ___by ___law.
