英语词汇U-boat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	U-boat
词根词缀	词源： 1916 (said to have been in use from 1913), partial translation of Ger. U-boot, short for Unterseeboot, lit. "undersea boat."
随便看	jussive just just about just as justice justify just now slovenly slow slow down slow up slubberdegullion sludge sluff slug sluggard sluggish sluice slum slumber slump slur slurp slurry slush

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