We could watch some mad men, on clement days, sauntering among the trim gravel walks and pleasantly planted lawns. 在天气暖和的日子里，我们可以看到一些疯子在整齐的碎石小径和美丽的人工草地间闲逛。
Thirdly,man-made grassland is being promoted so as to ease the pressure brought to bear on natural grassland by the ever-growing livestock population. 三是建设人工草地，减轻牲畜数量增加对自然草地的压力。
