1. Most new residential buildings in Sweden are already heated with ground-source heat pumps. 在瑞典，大多数新建的住宅建筑都已经由地源热泵系统供暖。
2. That's the problem: Songdo has become a popular Korean city—more pourlar as a residential area than a business one. 这就是问题所在：松岛已成为一个很受欢迎的韩国城市——其作为住宅区比作为商业区更具吸引力。
3. And that's the problem: Songdo has become a popular Korean city—more pourlar as a residential area than a business one. 这就是问题所在：松岛已成为一个受欢迎的韩国城市——比起商业区，作为住宅区更具吸引力。
4. The study will identify and collect data on sources of industrial, agricultural and residential pollution for two months. 这项研究将在两个月内确定并收集工业、农业和住宅污染来源的数据。
5. Environmental organizations want to preserve the land surrounding the Wilgrinn Wilderness Area from residential development. 环保组织希望保护威尔格林荒野地区周围的土地不受住宅开发的影响。
