1 turn down 1.拒绝His proposal was turned down. 他的提议被拒绝了。 2.关小，调低；拒绝3.拒绝采纳；拒绝考虑4.(把音量)调低 2, put down 1.放下Put the typewriter down here. 把打字机放在这儿。 2.写下Will you put down your address here? 把你的地址写在这儿好吗? 3.批评;奚落;贬损She always put down her boyfriend, but he didn't seem to mind. 她总爱奚落她的男朋友,但是他好像并不介意。 3,let down 1.使失望Don't worry. I'll never let you down. 别担心。我决不会让你失望的。 2.放下,降低;使失望3.使(人)失望；放下；放(长)衣服；不支持4.让…失望4, broke down break down 的过去式1.失败;故障2损坏,分解,瓦解3(健康等)垮掉，崩溃4打破；发生故障；中止 或者是broken down形容词 a. 1.坏了的;出了毛病的2.衰弱的
