短语词组短语flat roof roof garden 平台flat suspended roof 平面悬挂式炉顶Flat -roof system 平台屋顶系统flat -roof resonator 平顶谐振器flat tile roof 平瓦屋面flat deck roof 平顶盖;翻译flat tilt roof 平瓦屋面flat their roof 平屋顶 返回 flat roof