公制杯
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定义
容量单位，恰好等于250 mL，在澳大利亚、新西兰和加拿大用作标准杯量。
解释
The US customary cup is 236.6 mL—about 5.5% smaller than the metric cup. For most cooking this difference is negligible, but in baking and large-batch recipes it accumulates. Australian cookbooks specify metric cups, so US readers using an American cup set will consistently under-measure by roughly 1 tablespoon per cup.
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