forenoon frankly gasoline godfather gradually grandchild groundwork guidance guy
hamburger handful
hand-luggage handy harvest heighten hillside hip
historical hostess housekeeper humor idealist illness imprison indoors
inventiveness jew
journalist juice leather liberation lifetime lighten likelihood location lorry loudness
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madness meantime
midafternoon mileage misguide mismatch
misunderstand motorist
multinational mysterious nap
nationwide numerous observer
occasionally occupation operator outcome outlet outline outstanding overtime package painstaking passport photograph physicist picnic pigeon pilot pin pink pioneer planetary plentiful pocketbook poisonous
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politely possibility postage probability pronunciation protective provincial purple quarrel rainbow ray
real-life rebuild remarry rocket sail sameness satellite seller severely sightseeing sincerely slavery sleepless so-called sociologist soften software spell
strictness suburb
superhighway surprisingly sweater tasty tear teenager
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thread thunder
thunderstorm timetable toilet torch tremble tube
typewriter uncomfortable unpleasant unselfishness wnwanted unwillingly unwise upstairs upward(s) valley video violinist
well-informed well-known westward(s) whisper willingly worthless youthful
Chapter Five : 最高频四级词汇（3次以上）total:249
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（23次） offer (20次） effect (17次） case (16次） amount (15次） lack require
(14 次）environment individual material process produce remain standard
(13次）affect resource source stress threat
(12次） claim community contribute opportunity tend track
(11次）attach effective essential involve produce
(10次） aspect assume average concentrate communication concern desire
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