| 词组 | working their backside off |
| 释义 | (redirected from working their backside off)work (one's) backside offTo work really hard (on or at something). I know you thought it was just a silly New Year's resolution, but I've been working my backside off at the gym! Sally and Jim work their backsides off when we hold our user conference—I don't know what I'd do without them! |
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