[军] advance guard，vanguard，[体] halfback，avant-courier，skirmisher ；

[例句] 芭蕾舞观众认为埃里克·霍金斯的舞蹈设计非常前卫。 The choreography of Eric Hawkins is considered radical by ballet audiences.

[例句] 队长打算在下次比赛中让布朗踢左前卫. The captain wants to play Brown at left half in the next game.

in front，at the head，above，preceding，front ；

[例句] 他眼睛直视前方，加速超过了前面一辆慢吞吞行进的大卡车。 He looked straight ahead and overtook a lumbering lorry.

[例句] 马克走在前面，听不见他们的声音。 Mark was out of earshot, walking ahead of them.

outpost，advance guard，picket，vaunt-courier，[电影]Outpost；

[例句] 他们新的前哨阵地设在一座小山包顶上. Their new outpost was on the crest of a hill.

[例句] 该营的前哨部队已被召回. The battalion's outposts were called in.

preface，foreword，introduction，preamble，prolegomena ；

[例句] 我知道自己前言不搭后语。 I know that I am getting my words muddled up.

[例句] 随着夜色加深，他说话越来越前言不搭后语了。 As the evening progressed, he became increasingly incoherent.

front，frontline，battlefront，front line，[电影]Frontier；

[例句] 前线的防务得到后备装甲部队的支援。 These front-line defences are backed up by armoured units in reserve.

[例句] 沿整个前线已部署了坦克。 Tanks have been deployed all along the front line.

feedforward，front feed ；

[例句] 生理学的产生和发展; 前馈控制特点及生理意义. Physiological production and development; The characters and physiological meaning of Feed - forward control.

[例句] 前馈校正的引入克服了电压均值反馈控制快速性不好的缺点. The introduction of feedforward enhance speediness of this control system.

forepart，front，nose，foreside ；

[例句] 奔驰轿车的前部把大门洞穿了。 The snout of the Mercedes poked through the gates.

[例句] 碰撞时，汽车的前部和后部会被撞瘪。 The front and rear of the car will crumple during a collision.

[语] prefix，prefixion ；

[例句] 含硫化合物的名称前通常有前缀thio。 Sulphur-containing compounds are often prefixed by the term "thio"

[例句] 在单词 unimportant 中un是前缀. In the word " unimportant " , " un - " is a prefix.

senior (person)，elder，predecessor，the older generation，father ；

[例句] 他的风格几乎和他的前辈如出一辙。 His style could scarcely be further removed from that of his predecessor.

[例句] 他们都是我的前辈. They are all my seniors.

before，previously，antecede，anteriority ；

[例句] 允许考虑先前的法律。 It was permissible to take account of antecedent legislation.

[例句] 他把先前检查过的那些口袋又查了一遍，毫无收获。 Uselessly, he checked the same pockets he'd checked before.

（踏在前面的脚） the forward foot in a step，no sooner ... than，the moment ...，hardly ... when，chela ；

[例句] 你前脚走,她后脚就到了. She arrived the moment you had left.

[例句] 他脑袋和肩膀一缩, 前脚一伸, 把酒囫囵吞下肚. He ducked with his head and shoulders, scraped with more advanced hoof, bolted the alcohol.

criminal record，pedigree ；

[例句] 因为有犯罪前科，警察们都认识这个人。 The man was known to the police because of previous convictions.

[例句] 他17岁就有了小偷小摸的犯罪前科。 At 17, he had a criminal record for petty theft.

antenatal ；

[例句] 我曾经在一次产前辅导课上和她有过一面之缘。 I'd met her briefly in a prenatal class.

[例句] 目前,城市98%和农村70%的孕产妇都能得到产前检查. Around 98 percent of urban women and 70 percent of rural women have prenatal examinations.

predecessor，precursor，[电影]Ex - Amici come prima!；

[例句] 他从未表现出他前任的那种近乎傲慢的自信。 He has never exhibited the self-confidence, bordering on arrogance, of his predecessor.

[例句] 为了报复，她砸了前任男友的家。 She took revenge on her ex-boyfriend by smashing up his home.

[逻] premise，prerequisite，presupposition，precondition，premiss ；

[例句] 乔丹承诺在不减少基本服务的前提下，缩减市政预算。 Jordan promised to trim the city budget without cutting essential services.

[例句] 嗯，且慢，我并不完全同意这个前提。 Well, now just a second, I don't altogether agree with the premise.

fore limb，foreleg，anterior limb，hand，forelimb ；

[例句] 大多数飞翔生活, 身披羽毛,前肢演化成翅膀, 有坚硬的喙. Most fly life, wearing a feathered forelimbs grow wings, a hard beak.

[例句] 握力测试来评估前肢功能. The Grip Strength Meter was used to assess forelimb function.

colpus，prethoracic ；

[例句] 他把手伸进胸前口袋里拿雪茄烟盒。 He reached into his breast pocket for his cigar case.

[例句] 她一动不动地站着，低着头，双手紧扣在胸前。 She stood still, head bowed, hands clasped in front of her.

future，prospect，promise，lookout，outlook ；

[例句] 全国各地学生前途未卜。 Students all over the country are facing an uncertain future.

[例句] 这一小段由一位大有前途的青年男高音倾情演绎。 This small part was taken with elan by a promising young tenor.

forebrain，proencephalon，prosencephalon ；

[例句] 例如, 心电图仪可查抄人的心脏状态, 脑电图仪可查抄人的前脑状态. For instance, electrocardiograph can detect heart's condition. Electroencephalograph can detect brain's condition.

[例句] 为了前脑和心脏健康, 每周吃两次鱼吧. For brain and heart health, eat two servings of fish weekly.

eve ；

[例句] 玩具销售额在圣诞节前夕达到最高峰,现已逐渐下降. Toy sales peaked just before Christmas and are now decreasing.

[例句] 每当圣诞前夕我们都到祖母家去. On Christmas Eves we go to Grandma's home.