flatadj.平坦的；扁平的；单调的；断然的；[音乐]降音的；气不足的adv.平直地；直截了当；低于标准音高地n.<英>公寓；平面部分；[音乐]降半音；泄气轮胎v.变平；降调；住公寓Flathmann.弗拉思曼

1. The big flat roof with enormous nosing lies on the brown black walls.
   大块的平屋面伸出庞大的挑檐，架在棕褐色的墙上。
2. Multiparameter comparison wind tunnel tests were conducted to study wind-induced response characteristics for long-span flat roof structure aeroelastic models.
   对大跨度平屋面气弹模型的风致响应特性进行了多参数对比的风洞试验研究。