n. 建立,创立;(思想、信仰等的)基础,根据;(复数)地基;基金,基金会 lay solid foundations for 为 打下坚实的基础 fraction n. 小部分,片断,碎片;分数(数学) fragment n. 碎片,断片 The girl tried to put the fragments of a broken vase together. 那个女孩试图将一只破花瓶的碎片拼起来 particle frame n. 框架,框子 vt. 给 装框子 frame an oil painting 给油画装框 framework n. 构架,结构;机构,组织 frank adj. 坦白的,直率的 freight n. 货运;货物;运费 frequency n. 时常发生,频繁;频率,发生次数 frequent adj. 时常发生的,频繁的 a frequent visitor 常客 friction n. 摩擦,摩擦力;冲突,不和 fridge n. 冰箱 frog n. 蛙 frontier n. 国境,边界 frontier incidents 边界争端 border n. 边疆,边远地区;新领域 frost n. 霜;严寒,冰冻 frown n. 皱眉 There was a deep frown on his forehead. 他深深皱着眉头。 vi. 皱眉,表示不满 frown at sb. 对某人皱眉 frown on/upon 对 不赞成 fruitful adj. 多产的,富有成效的;肥沃的,丰饶的 fertile fry vt. 油煎,油炸 fuel n. 燃料 nuclear fuel 核燃料 n. 给 加燃料 fulfil vt. 履行,完成 fulfil one s promise 履行诺言 fulfil oneself 实现自己的抱负 vt. 满足(期望等),达到 function n. 功能,机能,作用;职务,职责;庆典,盛大集会
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