| 词汇 | dumb |
| 词根词缀 | 词源： O.E. dumb "silent, unable to speak," from PIE *dheubh- "confusion, stupefaction, dizziness." O.E., Goth. (thumb) and O.N. (dumbr) forms meant only "mute, speechless;" in O.H.G. (thumb) it meant both this and "stupid," and in Mod.Ger. this latter became the only sense. Meaning "foolish, ignorant" was occasionally in English from early 14c., but modern use (1823) comes from influence of Ger. dumm. Related: dumber; dumbest. Applied to silent contrivances, hence dumbwaiter. To dumb down is from 1933. 词根记忆： a. 哑的,无言的Thus the enthusiastic dumb man thumbed the humble man's umbrella.于是热情的哑巴用拇指拨弄谦卑男子的伞. |
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