save up如何造句

1、His target is to save $100 a week.他的目标是每周储蓄一百元。2、I save 50 dollars a month and I started in January.我从一月份开始每月储蓄五十美元。3、There was no ammunition laid up in the storehouses.仓库里没有贮存军火。4、People seldom stock up on Chinese cabbage now....