wear down

phr

• ① (使)磨损
  • The heels are worn down on one side.鞋跟有一边磨损得很厉害。

• ② 使疲倦
  • A long disease has worn him down.久病使他衰弱。

• ③ 逐渐克服,终于战胜
  • wear down the opposition逐渐挫败反对党