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来源:雅诚德英语网
But it was not until the beginning of the twentieth century that architectural acoustics became a scientific field.
但直到二十世纪初,建筑声学才正式成为一个科学领域。
But it was not until the beginning of the twentieth century that architectural acoustics became a scientific field.
但直到二十世纪初,建筑声学才正式成为一个科学领域。