名詞 rescuer:

1. a person who rescues you from harm or danger
   同義詞：savior, saviour, deliverer
2. someone who saves something from danger or violence
   同義詞：recoverer, saver

1. The one and only way to rescuer him is to lower down a rope.
   營救他的唯一辦法是往下放一根繩索。
2. The rescuer called to the men to pay out more rope so that he could go further down the cliff.
   營救者向人們喊，要他們把繩子再放長些，好使他能下到崖下。