Powerful battery-powered bicycles are crowding out their push-pedal brethren, delivering a jolt to the Bicycle Kingdom.
拥有电池强劲驱动的电动自行车正在将普通脚踏自行车挤出市场，改变了整个自行车王国的格局。
Powerful battery-powered bicycles are crowding out their push-pedal brethren, delivering a jolt to the Bicycle Kingdom.
拥有电池强劲驱动的电动自行车正在将普通脚踏自行车挤出市场，改变了整个自行车王国的格局。
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