英语词汇boatswain的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	boatswain
词根词缀	词源： mid-15c., from late O.E. batswegen, from bat "boat" + O.N. sveinn "boy" (see swain). Phonetic spelling bo'sun is attested from 1868.
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