石灰岩是非常容易溶解的软岩石。
盐很容易溶解于水，形成强有力的化学键，而这些键又不容易打破。
Salt dissolves very easily in water, forming strong chemical bonds, and those bonds are difficult to break.
原产地新西兰的容易溶解，爱尔兰的不太容易溶解。
Origin dissolved easily in New Zealand, Ireland's not easy to dissolve.
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