dilute是稀释的意思，而dissolve则是溶解的意思，例如
Acording chemistry, different stuff needs different solvent to dissolve, but the solvent you have to use full strength, if using diluted one, then you will not have what you expect.
根据化学，不同的东西需要不同的溶剂来溶解，但溶剂你必须用满浓度，用稀释的，那么你不会有你所期望的。
