dropout
n.
"one who 'drops out' of something," 1930, from drop, v. + out, adv.. As a phrase, drop out "withdraw" is recorded from 1550s.
| 词汇 | dropout | 
| 词根词缀 | Online Etymology Dictionary dropout n. "one who 'drops out' of something," 1930, from drop, v. + out, adv.. As a phrase, drop out "withdraw" is recorded from 1550s. | 
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