Whisk the eggwhites until they are foamy but not stiff.
挥打蛋清起沫但不变硬。
《柯林斯英汉双解大词典》
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The scientists also use DNA technology to make sure that the drugs are only inside the eggwhites.
科学家们还使用DNA技术来确保药物只存在于蛋白中。
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When you're in a hurry, try 3 scrambled eggwhites and 1 yolk mixed with yellow bell pepper, fresh spinach, and low-fat feta cheese—another tasty low-fat dish.