... 主要成本 first cost 主要或次要键major and minor keys 主要技术数据 main technecal details ...
双语例句
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To find out, Bowling and his colleagues first measured the distribution of tones in around 7500 western classical melodies and Finnish folk tunes in both majorandminorkeys.
Why do tunes in a major key, such as Singin' in the Rain, sound cheerful, while those in minorkeys – Pink Floyd's Another Brick in the Wall, say – sound gloomy and depressing?