Good service is one touchstone of a first-class restaurant.优质的服务是一流餐馆的一项检验标准。Job security has become the touchstone of a good job for many employees.工作稳定性已成为很多员工衡量一份工作好坏的标准。Labour productivity, the touchstone for new growth, remains low.作为衡量经济新增长尺度的劳动生产率仍然是低的。