solution [s?0?5'lju:?0?6?0?5n]
n. 解答,解决办法,溶解,溶液
既然是名词就是做名词的用法，做主语或者宾语、
具体是所指哪个意思就看大体上下文。
例句与用法:
Litmus paper can be used as an indicator of the presence of acid in a solution.
石蕊试纸可用以测试溶液是否含酸.
The analysis showed a few grains of arsenic in the solution.
分析显示溶液中有几格令的砷.
We haven't found the solution yet, but I'm sure we're on the right track.
我们还没有找到解决办法, 但我肯定我们的思路是对的.
What color is copper sulphate solution?
硫酸铜溶液是什么颜色？
Measurement of the amount of heat evolved or absorbed in a chemical reaction, change of state, or formation of a solution.
反应热测量对某一化学反应过程、状态变化过程或一溶解过程释放也或吸收的热量所作的测量
An explanation, as of a problem or puzzle; a solution.
解释如一个问题或难题等的解释；解答
It seems (to me) (to be) the best solution.
（依我看）这似乎是最好的解决办法.
What color is copper sulfate solution?
硫酸铜溶液是什么颜色？