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来源:雅诚德英语网
Society needed a more dependable instrument of time measurement and found it in the mechanical clock.
社会需要一种更可靠的时间测量仪器,它就是机械钟。
Society needed a more dependable instrument of time measurement and found it in the mechanical clock.
社会需要一种更可靠的时间测量仪器,它就是机械钟。