只购买你必须的东西。
At the supermarket, you should buy only what you need and what you can use.
在超市里，你应该只买你需要的和你能使用的东西。
If you are careful, and only buy what you will need and use, then you can add a significant savings to your grocery bill.
如果你非常细心的话，只购买自己需要和用到的商品，这样你就能省下一大笔日常开支的费用。
Only buy what you need, and do not buy everything you see.
只买你所需要的，不要看到什么东西都买。
The reasons are simple: If you carry only the cash you need to buy what you went out for, you'll avoid impulse buys.
原因是简单的：如果你携带仅仅你需要购买东西的现金出去，你将避免冲动购买。
The reasons are simple: If you carry only the cash you need to buy what you went out for, you'll avoid impulse buys.
原因是简单的：如果你携带仅仅你需要购买东西的现金出去，你将避免冲动购买。
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