He said to use the lifeline running along the ceiling, a slender rope threaded through wooden cones, like floats in a swimming pool.
他告诉大家要使用天花板上垂下的救生索，那是一条穿有木质球果的绳子，类似游泳池内的浮标。
youdao
应用推荐
模块上移
模块下移
不移动