英语词汇backswimmer的起源、历史背景-英语词源词典

词汇	backswimmer
词源	backswimmer. A marine bug that swims on its back and can inflict painful bites if handled. It is also called the boat bug.
随便看	ferret ferris wheel fertilizer ferule fescennine fetus few and far between fey feydeauesque feynman diagram fez ff ffv fiacre fiasco fiat money fib fiddle fiddle-dee-dee fiddlehead ferns fiddler crab fiddler-s green fiddlesticks fiddle while rome burns fidelism

英语词源词典收录了13259条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。