单词	lockfast
释义	lockfast /ˈlɒkfɑːst / adjective Scottish Secured with a lock: lockfast areas in which to store equipment... Within a period of two or three weeks, it appeared that the main building was no longer lockfast and was being regularly entered by unauthorised persons.
随便看	perp per pais per pale perpend perpendent perpendicular perpendicularity perpendicularly perpendicularness perpendicular pronoun perpensity perpet ion channel ion chromatography ion drive ionene ion engine Ionesco, Eugène ion etching ion exchange ion-exchange chromatography ion-exchanged ion-exchange polymer ion exchanger ion-exchange resin

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