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来源：雅诚德英语网
In the late 1700s and the earlier 1800s, the development of the piano coincided with the growth of the middle class in Western Europe.
在18世纪晚期和19世纪早期，钢琴的发展恰好与西欧中产阶级的壮大是同步的。
In the late 1700s and the earlier 1800s, the development of the piano coincided with the growth of the middle class in Western Europe.
在18世纪晚期和19世纪早期，钢琴的发展恰好与西欧中产阶级的壮大是同步的。