“不溶”怎么读？

胡萝卜素不溶于水，但可溶于油类和脂肪。Carotenes are insoluble in water and soluble in oils and fats.这些化学物质几乎不溶于水.These chemicals are practically insoluble in water.樟脑溶于酒精而不溶于水Camphor dissolves in alcohol, but not in water....

“不溶”的英语可以翻译为：[化] insoluble，undissolved ...