She decided that she was going to try to just use cash for two weeks to make all of her essential purchases and see what that would do to her spending.
她决定尝试在两周内只用现金来进行所有必需的采购，看看这会对她的消费产生什么影响。
2
The purchases were paid for with cash.
这些购置是用现款支付的。
《新英汉大辞典》
3
Ten years ago, American consumers paid cash or cheques for 71% of their purchases.