ice free stall airspeed

例句：

1. 1.The ice-free swimming pool is a popular attraction for families.
   这个无冰游泳池是家庭游客的热门景点。
2. 2. The ice-free area is safe for children to play in.
   这个无冰区域对儿童玩耍来说是安全的。
3. 3.The ice-free road was built to prevent accidents on the icy roads.
   这条无冰道路是为了在结冰道路上防止事故而建造的。