door-opener

英 ['dɔːr'əʊpənər] 美 ['dɔːr'əʊpənər]

• n. 敲门砖

例句

用作名词 (n.)

1. He had time to discover that the name of Griffiths in Lycurgus was one that would open the door of Lycurgus exclusive circles.
   他已经有这么多时间足以发现格里菲思这个姓是敲开莱科格斯上流社会大门的敲门砖。