upgrade existing enterprises的用法和樣例：
例句
- We must give full scope to the production capacity of the existing enterprises.
我們必須充分發(fā)揮現有企業(yè)的生產(chǎn)能力。 - Foreign capital is mainly used in the key construction and in technology reformation of the existing enterprise.
外資主要用于關(guān)鍵的建設項目和現有企業(yè)的技術(shù)改造。
