Investment has different meanings in different areas. But in the ares of finance and economics, the word-investment, carries more or less the same connotations, which means a certain degree of an accumulation of property so as to obtain more profits in the long run. From the perspective of technology or technically speaking, investment means "a behavior of putting certain things in other places." However, from the perspective of finance, long-time investment tends to yield a sustained gain in cash flow sometime in the future, i.e., an accumulation of future profits.
对不起,没时间译下去了。