A standard one. Replacement during the first year if all rules for proper use have been followed.
有一个原则,如果在一年内符合各种使用规定,就可更换。
In a few years the small workshop had become a large factory which employed seven hundred and twenty-eight people.
几年之后,小铺子已经发展成了一个雇有728人的大工厂。