单词	four-footed
释义	four-footed adjective four-foot·​ed ˈfȯr-ˈfu̇-təd  : having four feet : quadruped Word History First Known Use 14th century, in the meaning defined above
随便看	fail to understand fail-safe fail-safes failance failed failed (at) failed at failing failing (at) failing at failing grade failing grade/mark failing mark failing that failingly failings faille failles fails fails (at) fails at failure failures faimly fain

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