clamshell crane

例句：

1. 1. The tall crane stood at the edge of the river, watching over the boats.
   高高的鹤站在河的边上，看着船上的船只。
2. 2. The crane was used to lift heavy loads and transport goods across the city.
   鹤被用来搬运重物和在城市之间运输货物。
3. 3. The crane's wings were so large that they could cover an entire room.
   鹤的翅膀那么大，可以覆盖整个房间。