Be unable to come abruptly successfully, it is the result accumulating bit by bit, anybody needs to want to must go ahead step by step successfully.

成功不会突然降临，它是一点一滴积累起来的结果，任何人要想成功必须一步一步地前进。

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The first step uses a bit of influenza DNA to get the patient's immune system to begin fighting off the flu, and then the protection is given a "boost" some time later by the second step, which can be either another bit of DNA or a conventional flu vaccine.

VOA: standard.2010.07.21