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来源:雅诚德英语网
The coal-fired steam engine was taking over, and the waterwheel was fast becoming obsolete.
烧煤的蒸汽机开始占领市场,于是水车很快就过时了。
The coal-fired steam engine was taking over, and the waterwheel was fast becoming obsolete.
烧煤的蒸汽机开始占领市场,于是水车很快就过时了。