polemic [p?'lemik, p?-]

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辯論，爭(zhēng)論（名詞）

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(noun) A profound controversy, particularly one involving important doctrines or serious opinions. (NOTE: also used as an adjective describing such a controversy)

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EXAMPLE: For many years economists have been involved in a great and often bitter polemic regarding national monetary policy.

多年來(lái),，對(duì)于國(guó)家的貨幣政策,，經(jīng)濟(jì)學(xué)家一直處于經(jīng)常很激烈的巨大爭(zhēng)論之中。

to keep something on tap

使某物可隨時(shí)使用

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(Informal) Expression meaning to keep something readily available for possible use.

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EXAMPLE: Because new projects often must start as soon as our firm gets a contract signed, we keep a list of competent local subcontractors on tap so we can hire them quickly if necessary.

由于新計(jì)劃經(jīng)常要在公司簽下合同后立即開始,，我們保存了一份可隨時(shí)調(diào)用的當(dāng)?shù)睾细穹职堂?，這樣一旦有需要，就可以迅速雇用它們,。