1.between a rock and a hard place

　　2.Be in a dilemma(The bad weather put us in a dilemma.糟糕的天气使我们进退两难)

　　3.tough call左右为难(It was a tough call for me.我感觉左右为难)

　　4.in a difficult position 处境艰难

　　5.on the horns of a dilemma

　　6.Catch-22 situation