To rely on local provisions; to forage for food from local households (especially for an army or travelers who do not carry their own supplies).
这支探险队为了减轻行囊，常常望屋以食，在旅途中向居民换取或购买食物。
To lighten their load, this expedition team often relied on local households for food, exchanging or purchasing provisions from residents along their journey.
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