Each day, you would choose one of the meals from each category (more from the snacks), or mix them up if you like.

每天，你需要从每类食物中选择一份(点心多选几份)食用，或者混在一起吃。

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Be careful not to mix them up.

因此要注意不能将它们混用。

youdao

Therefore, you must be careful not to mix them up.

因此，必须注意不能将它们弄混。

youdao

Do mix grass cuttings with other wastes to loosen them up.

VOA: special.2009.06.23

You know from experience if you've ever mixed them to make salad dressing, they don't mix too well. And you may know that if you heat them up, they mix much better.

经验告诉我们,你无法把它们混合做成色拉酱调料，他们不会很好的混合，但是你也知道,如果我们把他们加热，就能够混合的更好。

麻省理工公开课 - 热力学与动力学课程节选

The military uses similar chemicals in its rockets, only it gets to spice up the mix a bit by adding nitroglycerine-based explosives to the fuel, making them about 20% more powerful than sophisticated hobby engines.

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