Whisk the egg white until light and fluffy, add in sugar slowly, continue whisk until stiff. Mix with fresh cream.

蛋白打发至软性，慢慢将砂糖加入，继续打发至硬状，与鲜奶油一起拌匀。

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However, engineering properties for hydrated lime asphalt mastics at 1.5 dust to binder ratio, couldn't be tested because the specimens were too stiff to mix at this ratio.

然而，矿粉结合料比为1.5时，由于添加熟石灰后试件太硬无法拌和，因此沥青胶浆的工程性质无法测试。

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He had to carry water and dig up the red earth and mix it into a stiff clay.

他要取水挖掘红泥，并把它混成稠密的粘土。

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