egg cream

egg-cream的词性：
n.（名词）

1. A drink made of milk, syrup, and soda water.
蛋奶：用牛奶、糖浆和苏打水调制成的饮料

egg-cream的词源：

2. [Probably from its foamy, egg-whitelike head]
[名称可能源于其泡沫丰富的蛋白色奶脂层]