put sb. on the spot使某人處于難堪地位;為難某人

　　between a rock and a hard place左右為難,進退兩難

　　the horns of a dilemma左右為難的處境

　　in a pickle在困境中

　　in a tight spot在困境中,在窘境中

　　in the middle夾在中間,左右為難

　　between two fires遭兩面夾攻

　　between the devil and the deep blue sea進退兩難

　　between Scylla and Charybdis腹背受敵,進退兩難

　　between the hammer and the anvil腹背受敵,被兩面夾攻

　　Hobsons choice無選擇余地的選擇

　　catch-22叫人左右為難的規定