His method was to organize small ensembles of four or five saxophones and a clarinet and have the students compose some of the music themselves.

他的方法是组建一个只有四、五件萨克斯管和一件单簧管的小乐队，并让学生自已谱一些曲。

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In choosing a method for determining climatic conditions that existed in the past, paleoclimatologists invoke four principal criteria.

在选择确定过去存在的气候条件的方法时，古气候学家援引了四个主要标准。

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With only one radar, this measure is not very informative, but the researchers' method USES four, pointing in different directions through the same air-mass.

仅使用一个雷达，所得的信息并不准确；而研究人员们同时使用四个雷达，分别从不同的方向对同一个气团进行测量。

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This method requires four or five months to develop a vaccine once a new strain is pinpointed.

FORBES: Government Backs Futuristic Flu Shots

They calculate that within four years this method could even replace insecticide-treated bed nets as a way of controlling mosquitoes.

BBC: NEWS | Health | Fungi 'new tool' against malaria

There are, by this method of measuring things, four components in GDP.

FORBES: Trades Union Congress Misleads With Statistics On Wages