多年来她靠乞讨为生。

For several years she ___lived by begging.

他同意娶她只是为了能靠她的钱生活。

He only agreed to marry her so he could ___live ___off her money.

他们像寄生虫一样依靠宿主国家的资源生活。

They parasitically ___lived ___off the host country's resources.