A soft varnish and an insufficient undercoating have a tendency to deaden heavily the sound of a violin.
柔和
清漆和不足防底层清漆严重减弱小提
音.
A soft varnish and an insufficient undercoating have a tendency to deaden heavily the sound of a violin.
柔和清漆和不足防底层清漆严重减弱小提音.
明：
上例句、词
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