| 词汇 | bolster |
| 词根词缀 | 词源： O.E. bolster "bolster, cushion, something stuffed so that it swells up," especially "long, stuffed pillow," from P.Gmc. *bolkhstraz (cf. O.N. bolstr, Dan., Swed., Du. bolster, Ger. polster), from PIE *bhelgh- "to swell" (see belly). The verb in the figurative sense is from c.1500, on the notion of "to support with a bolster, prop up." |
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