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adj.挫败的，失意的，泄气的v.使不成功( frustrate的过去式和过去分词 )，挫败，使受挫折，令人沮丧...
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frangufoline的音标：frangufoline的英式发音音标为：[fræŋɡʌ'fəʊlɪn]frangufoline的美式发音音标为：[fræŋɡʌ'foʊlɪn]...
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红外折射...
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Frankiaceae的音标：...
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fragrancy的音标：fragrancy的英式发音音标为：['freɪgrənsɪ]fragrancy的美式发音音标为：['freɪgrənsɪ]...
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infrastructure的音标：infrastructure的英式发音音标为：['ɪnfrəstrʌktʃə(r)]infrastructure的美式发音音标为：['ɪnfrəˌstrʌktʃɚ]...
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freight的近义词/同义词有：load, burden, cargo, goods, shipment, or, shipment, load, forward, cargo, forwards, goods, burden, boat。n.freight的近义词（货物;负荷）：load, burden, cargo, goods, shipment。freight的近义词（其他释义）：or, shipment, load, for...
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n.无线电频率...
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vt.使惊恐，使恐慌，吓走，赶走vi.害怕，惊恐...
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n.女朋友，女性朋友...
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freight的现在进行时为：freighting...
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v.（使）强烈反应，震惊，畏惧( freak的过去式和过去分词 )...
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prep.（表示时间）从…，（表示原因）因为，（表示来源）来自…，（表示分离）与…分离[隔开]...
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微球粒，微球团，草莓状结核...
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fridges的音标：...
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frosty的比较级为：frostier...
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The infra - red spectra of quinones present a number of interesting features.醌类的红外光谱具有一些有趣的性质.Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region.乙烯和反式二氯乙烯在红外光谱的这个区域都无活性.Infra - red ...
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fraud的复数形式为：frauds...
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Why are these people pulling back refraining from trying new things?为什么这些人宁可往后退也不愿尝试新事物?Refraining from producing speech or vocal sound.缄默的不说话或不发出声音的.It will play a fundamental role in refraining the deterioration of man...
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v.给予选举权( enfranchise的第三人称单数 )，（从奴隶制中）解放...
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infraction的音标：infraction的英式发音音标为：[ɪn'frækʃn]infraction的美式发音音标为：[ɪn'frækʃən]...
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frugal的反义词有：wasteful, extravagant, prodigal, wasteful。adj.frugal的反义词（节约的;廉价的）：wasteful。frugal的反义词（其他释义）：extravagant, prodigal, wasteful。...
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v.跳背，交替前进，跃过( leapfrog的第三人称单数 )...
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Women should be free to dress and act as they please.女性应该有穿衣和行动的自由。People should be free to express their individuality.人们应该能自由表达他们的个性。I'm afraid I won't be free until 7 o'clock.我七点钟以前恐怕抽不出身来....
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infracts的音标：...
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frays的音标：...
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n.自由，自主，直率，特权，特许，自由权...
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Frankincense is a type of sweet - smelling gum from a tree.乳香是从树上提炼的一种有甜味的树脂.There are over 52 references to Frankincense in the Bible.圣经上有五十二处提到过乳香.Zheng's fleet stopped here to trade porcelain for frankincense , m...
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n.果糖尿...
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n.蛙眼病( frogeye的名词复数 )...