词语

敲门砖拣砖头敲门门开后即弃砖。比喻谋求名利的手段。例这是敲门砖敲开便丢下他。我们既作了官，做诗何用。——明西湖居士《春游》英a brick picked up to knock on the door and thrown away when it has served its purpose—a stepping-stone to success;