Similarly, the autoreceptors tell the midbrain to start pumping dopamine or stop, depending on how much of the chemical is already around.

同理，自受体告诉中脑何时开始生产多巴胺或停止生产，这将取决于大脑里此时此刻已经有了多少这种化学物质。

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Investors have also been calling on the U.S. Federal Reserve to start pumping money into the American economy again to help underpin the slowing economic recovery.

投资者一直呼吁美联储再次向美国经济注入更多资金，帮助支撑速度缓慢的经济复苏。

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Now, start pumping the cement!

现在开始注水泥。

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If Avatar is a bona fide hit, studios will start pumping out many more 3-D films.

FORBES: Magazine Article

Get more of us in the Boardroom and maybe we can start pumping out some really interesting research.

FORBES: Do Women Make Startups More Successful? If So, How?

However, when the Mariner and Culzean fields start pumping, that should sharply increase the Tokyo-based refinery and retailing firm's presence in British waters.

BBC: JX Nippon Oil and Gas Exploration buys UK assets