| 词汇 | bur |
| 词根词缀 | 词源： "prickly seed vessel of some plants," early 14c., burre, from a Scandinavian source (cf. Dan. borre, Swed. hard-borre, O.N. burst "bristle"), from PIE *bhors- (see bristle). Transferred 1610s to "rough edge on metal," which may have been the source of the sense "rough sound of the letter -r-" (see burr). |
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