1909, "boxing bout for training," from work (v.) + out (adv.). General sense of "spell of strenuous physical exercise" is attested by 1922. Verbal phrase work out "solve" (a problem, etc.) is from 1848. Sense of "succeed" attested by 1909.
权威例句
1. Give your upper body a workout by using handweights.
用哑铃来锻炼上身。
2. She does a 20-minute workout every morning.
她每天早晨做运动20分钟。
3. I went for a ride to give my new bike a workout.