1. (問(wèn)題等)不能解決的 An insoluble problem is so difficult that it is impossible to solve.
e.g. I pushed the problem aside; at present it was insoluble... 我把問(wèn)題拋在一邊，目前它還無(wú)法解決。 e.g. It was an insoluble dilemma and one which I could do nothing about. 那是個(gè)無(wú)法解決的兩難局面,我無(wú)計可施。
2. 不溶解的 If a substance is insoluble, it does not dissolve in a liquid.
e.g. Carotenes are insoluble in water and soluble in oils and fats. 胡蘿卜素不溶于水,但可溶于油類(lèi)和脂肪。