煮通心粉需要半加仑的水而洗锅的水则需要1加仑。

It takes about a half a gallon of water to cook macaroni, and about a gallon to clean the pot.

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把汤骨汆烫后洗净，把汤骨和干贝加入锅里，注入半锅的水，大火煮滚后转中火煮30分钟。

Blanch soup bones and clean the bones thoroughly. Place the bones and dried scallops into a pot. Add half pot of water, bring to boil and turn the heat to medium, cook for 30 minutes.

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慢慢地煮这混合物，直至蒸发掉一半的量为止。

Let the mixture simmer until it has evaporated to half its volume.

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