n.

1. 解答；解决（办法）；解释[C][（+to/of/for）]
   It may take a long time to find a solution to the problem.

   也许要花很长时间才能找到解决这个问题的办法。

   The solution of the problem requires a lot of time.

   解决这个问题需要很多时间。

2. 【数】解法，解式[C]
3. 溶解，溶化；溶解状态[U]
   Salt can be held in solution in water.

   盐能溶于水。

4. 溶液，溶剂[C][U]
   She rinsed her mouth with a solution of salt in water.

   她用盐的水溶液漱口。

5. 瓦解；中断；消散[C][U]
6. 【律】（债务的）清偿；（契约或义务的）履行[U]

n.

1. a means of solving a problem.
   ▸the correct answer to a puzzle.
   ▸ (solutions) products or services designed to meet a particular need:

   Internet marketing firm specializing in e-commerce solutions.
2. a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).
   ▸the process or state of being dissolved.
3. archaic dissolution.