bivalency

推荐单词

• freshet
• freshen
• fresh-water
• fresco
• frequently
• frequentative
• frequency
• frequence
• freon
• frenzied
• frenum
• frenetic
• frenchify
• french
• fremd
• freighter
• freightage
• freezer
• freeway
• freeze-dried
• eyelss
• eyelid
• eyelash
• eyehole