单词	eta meson
释义	eta meson noun : an uncharged elementary particle with zero spin that has a mass 1074 times the mass of an electron and that decays rapidly especially into pions called also eta particle Word History Etymology eta entry 1
随便看	last-minute last/dying breath lastage lastages lastborns lasted lasted (beyond) lasted beyond laster lasters lastest Lastex lastheniae lasthenias lasting lasting (beyond) lasting beyond lastinglier lastingliest lastingly crannage crannied crannies crannock crannog

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