sol·u·ble /ˈsɑljəbəl/
  (a.)溶解的,可溶解的,可以解決的
  sol·u·ble /ˈsɑljəbəl/ 形容詞
  能溶解的,可溶的
  Sol·u·ble a.
  1. Susceptible of being dissolved in a fluid; capable of solution; as, some substances are soluble in alcohol which are not soluble in water.
     Sugar is . . . soluble in water and fusible in fire.   --Arbuthnot.
  2. Susceptible of being solved; as, a soluble algebraic problem; susceptible of being disentangled, unraveled, or explained; as, the mystery is perhaps soluble. “More soluble is this knot.”
  3. Relaxed; open or readily opened. [R.] “The bowels must be kept soluble.”
  Soluble glass. Chem. See under Glass.
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  soluble
       adj 1: (of a substance) capable of being dissolved in some solvent
              (usually water) [ant: insoluble]
       2: susceptible of solution or of being solved or explained;
          "the puzzle is soluble" [ant: insoluble]