Usages of contener
Este pan no contiene trigo ni gluten.
This bread does not contain wheat nor gluten.
Lo que importa es que no contiene lactosa, porque soy intolerante.
What matters is that it does not contain lactose, because I am intolerant.
Lo que me da miedo es si el plato contiene trazas.
What scares me is if the dish contains traces.
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