fall back
後退,退卻
fall back
v 1: fall backwards and down
2: hang (back) or fall (behind) in movement, progress,
development, etc. [syn: lag, dawdle, fall behind]
3: move back and away from; "The enemy fell back" [syn: recede,
retire] [ant: advance]
4: retreat [syn: lose, drop off, fall behind, recede]
[ant: gain]
5: have recourse to; "The government resorted to rationing
meat" [syn: resort, recur]
6: go back to bad behavior; "Those who recidivate are often
minor criminals" [syn: relapse, lapse, recidivate, regress,
retrogress]