蛋黄酱里的蛋黄充当了乳化剂，使油和水能够混合在一起。

The egg yolk in mayonnaise acts as an ___emulsifier to blend oil and water together.

冰淇淋中添加了乳化剂来防止油水分离。

Ice cream contains an ___emulsifier to keep the oil and water from separating.

这种面霜含有乳化剂，能将精油和水基成分完美融合。

This face cream contains an ___emulsifier that perfectly blends essential oils with water-based ingredients.