剑桥词典an agreement under which an employer can change the number of hours worked by an employee , and does not have to offer any hours 零工时合同（雇主可自由改变雇员工作时间甚至无须保证有任何工作时间的合同） Thousands of workers in the UK are on zero-hours contracts . 在英国，成千上万的工人签的是零工时合同。 返回 zero-hours contract