standard method of payment

例句：

1. 1. The standard ofliving in this area is very high.
   这个地区的生活水平非常高。
2. 2. Standards for safety mustbe strictly enforced.
   安全标准必须严格执行。
3. 3.The company has set a new standard forcustomer service.
   该公司为客户服务设定了新的标准。