頓挫,挫折,退步
Setback \Set"back`\, n. 1. (Arch.) Offset, n., 4. 2. A backset; a countercurrent; an eddy. [U. S.] 3. A backset; a check; a repulse; a reverse; a relapse. [Colloq. U.S.]
setback n : an unfortunate happening that hinders of impedes; something that is thwarting or frustrating [syn: {reverse}, {reversal}, {blow}, {black eye}]