fall area造句

• Study of repair and reinforcement technique for roadway roof - fall area in loose mudstone
  松软泥岩中巷道冒顶区修复加固技术的研究
• The tour will depart niagara falls area in late - morning , and heading back to new york city for an early evening arrival
  约中午十时左右，巴士离开瀑布，南下回程，中途停留用午餐，约晚上返抵纽约华埠本公司门口散队。