To be water and energy efficient constitutes the main guideline in the Olympic venue construction and activities. Water and energy efficient building materials and equipment will be selected for the venues.是什么意思_To be water and energy efficient constitutes the main guideline in the Olympic venue construction and activities. Water and energy efficient building materials and equipment will be selected for the venues.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句