grapnel grappling iron

例句：

1. 1. The sailor used a grapnelto secure the boat in the storm.
   水手用绞索在暴风雨中固定了船。
2. 2. The rescue team used grapnels to pull the victims from the wreckage.
   救援队使用绞索将受害者从残骸中拉出。
3. 3. The climber used a grapnel to rappel down the cliff face.
   攀岩者使用绞索从悬崖上滑降。