你们将乘坐地铁穿过巴黎这座大都市，既方便快捷又经济实惠。
Transportation in Paris will be via Metro all the time, the service is extremely efficient and economical.
很明显，体育活动是一项有利于健康而又经济实惠的娱乐活动。
It is evident that sports and games are a healthy but cheap way to fill their leisure time.
你们一定知道，这种打字机轻便高效，经久耐用又经济实惠，适合高中学生使用。
You are well aware that this type of typewriter is portable and durable, economical and practical for high school students.
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