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v. Syn. disappear; die out
(减弱下去,褪色,消失,枯萎) disappear; die out; lose color; lose freshness


Spelling Word: fade
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v. Syn. hesitate
(犹豫,踌躇) be unsteady in purpose or action, as from loss of courage or confidence


Spelling Word: falter
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n.
(狂热的,盲信的) person who is zealously enthusiastic for some cause; showing evidence of possession by a god or demon


Spelling Word: fanatic
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n.
(再见,一路平安) acknowledgment at parting; goodbye; act of departing or taking leave


Spelling Word: farewell
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v.
(闪烁,摇曳) flutter; flap the wings without flying; waver unsteadily, like a flame in a current of air


Spelling Word: flicker
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n.
(松软的绒毛团,软毛,填充材料) inflated or padded material; light down or fuzz, as on a young bird; superficial entertainment


Spelling Word: fluff
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v.
(加强,巩固) make strong or stronger; prepare oneself for a military confrontation


Spelling Word: fortify
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n. Syn. segment; fragment
(小部分,少量) segment; fragment; a small proportion of


Spelling Word: fraction
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n. Syn. gas; smoke
(有害,浓烈或难闻的气体) a cloud of fine particles suspended in a gas; emit a cloud of fine particles


Spelling Word: fume
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a. Syn. primary; essential
(基本的,基础的) relating to foundation or base; elementary; primary; essential


Spelling Word: fundamental