investment相关的词根或词缀是: vest

复数： investments

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Trade and investment will be hurt .

贸易和投资将受到影响。

It represents investment both in hours and in money .

专利体现了发明人在时间和金钱上的投入。

By 2000 investment had fallen to $ 2.5 billion .

到2000年为止，投资额业已下滑到25亿美元。

But more investment is needed .

但还需要更多的投资。

Investment decisions are big decisions .

投资决策是属于重大决策。