C1 something that happens that delays or prevents a process from developing挫折;障碍
Sally had been recovering well from her operation, but yesterday she experienced/suffered a setback.萨莉手术后一直恢复良好,但昨天她的病情再度复发。
There has been a slight/temporary setback in our plans.我们的计划遭到了一点儿/暂时的挫折。