挫折；倒退；逆流

• Then in the fall, after six months of family nurture and adoration, the doggy suffered a setback.

  然而，经过半年我们家人的喂养和宠爱，小狗在秋天遭遇了挫折。

• Europe's tragedy is a setback for all mankind.

  欧洲的悲剧是全人类的倒退。

• He met with many a setback in his lifetime.

  他一生中遭到过许多挫折。

• The move represents a setback for the Middle East peace process.

  这个行动意味着中东和平进程受挫。