cast away like a pair of worn-out shoes; be thrown onto the garbage heap;not set at a pin’s fee; be regarded as worthless (/as cheap as dirt) ❍ 一旦他们达到了彻底撕毁协议的目的，那个傀儡也就会由于丧失了可供利用的价值而被～。Once they succeed in tearing up the agreements,the puppet will also have outlived his usefulness as a tool and will be thrown onto the garbage heap.