They had been built of mud and straw, she judged, but long years of wind and rain had worn them away to nothing.
它们应该是用泥土和草茎搭起来的，她判断，但是长期的风雨也已经将其冲刷成一片残迹。
2
If it's not convenient to adjust the whole machine, the client can unload the wind window, and revolve the nut 0.5 to 1 ring according to the worn conditions of the brake plate.