世博会运营的成功，不仅是让观众能在舒适、安全、低成本的环境里，体验世博理念；
A successful Expo will make the visitors experience the Expo notion in a comfortable, secure and low-cost environment.
世博会运营的成功，不仅是让观众能在舒适、安全、低成本的环境里，体验世博理念；
A successful Expo will make the visitors experience the Expo notion in a comfortable, secure and low-cost environment.
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