代 （自己） self，oneself，one's own；副 （自然；当然） certainly，of course，naturally，willingly；介 （从； 由） from，since ；

[例句] 发电站烧的煤产自鲁尔地区。 The power stations burn coal from the Ruhr region.

[例句] 所有的皇家轿车都装有电子自导引装置。 All the royal cars are fitted with electronic homing devices.

freedom，liberty，free，unrestrained，at liberty；

[例句] 政客们贬低了“自由”一词的意义。 Politicians have debased the meaning of the word "freedom"

[例句] 这音乐带给他一种完满和自由的感觉。 The music brought him a feeling of plenitude and freedom.

voluntarily，of one's own accord，automatic，spontaneous，automatism ；

[例句] 我挤出人群，踏上了自动扶梯。 I pushed through the crowds and on to the escalator.

[例句] 他们安了自动点唱机后，我在那儿学会了跳摇摆舞。 I learnt to jive there when they got the jukebox.

robotization，automation，automatization，automate ；

[例句] 他想通过计算机实现流程的自动化。 He wanted to use computers to automate the process.

[例句] 自动化气象站将风向信息输入计算机。 An automatic weather station feeds information on wind direction to the computer.

act on one's own，be one's own master，[生] autonomously，decide for oneself，freedom ；

[例句] 我们不能自主行事；我们遵循总统的决定。 We are not free agents; we abide by the decisions of our president.

[例句] 他感觉自己好像被命运掌控，毫无自主选择的余地。 He felt as though he were in the grip of Fate and had no volition of his own.

oneself，self，[心理] ego，atman，self- ；

[例句] 被自恋症折磨的人会变得只专注于自己的事情，或者不断地自我炫耀。 Those who suffer from narcissism become self-absorbed or chronic show-offs.

[例句] “请原谅我礼数不周，”她平静地说。“我忘了自我介绍了。” "Forgive my manners," she said calmly. "I neglected to introduce myself."

oneself，self ；

[例句] 老板由于自身的地位而一直有极大的影响力。 The boss retains enormous influence by reason of his position.

[例句] 他一无所有，仅靠自身才能就变得富有而出名。 With nothing but his own talent, he made himself rich and famous.

bicycle，bike，cycle，push bike，push cycle ；

[例句] 这家公司生产一系列的新型轻便自行车。 The company manufactures a range of innovative light-weight cycles.

[例句] 如果天气适宜，会有更多的人被吸引到骑自行车的行列中来。 More people would be attracted to cycling if conditions were right.

revolve on its own axis，rotation，revolution，autorotation ；

[例句] 地球的周日自转 the diurnal rotation of the earth

[例句] 地球每天的自转 the daily rotation of the earth on its axis

by oneself，of oneself，of one's own accord，voluntarily，proper motion ；

[例句] 拐过斜弯时他竭力将自行车把稳。 He struggled to hold the bike down on the banked corners.

[例句] 他不顾医生的劝告自行出院了。 He discharged himself from hospital against the advice of doctors.

exercise autonomy，autonomous rule，self-rule，self-government，autonomy ；

[例句] 上个月激进分子对地方自治的呼声更高了。 Activists stepped up their demands for local autonomy last month.

[例句] 殖民地正要求获得更大程度上的自治。 The colonies were claiming a larger measure of self-government.

idioctonia，commit suicide，take one's own life，lay hands on oneself，self-destruction ；

[例句] 青少年自杀很少是由于突然发生不幸而作出的冲动反应。 Adolescent suicide is rarely an impulsive reaction to immediate distress.

[例句] 在到精神病医院两小时后他就上吊自杀了。 He hanged himself two hours after arriving at a mental hospital.

authigene （矿物），autogeny，idio-，spontaneity ；

[例句] 在局部地方白云石和硬石膏也是重要的胶结物;还有少量自生石英. Locally dolomite and anhydrite are important as cements , together with minor authigenic quartz.

[例句] 钱存在银行,利息自生. Money deposited in banks will accrue to us with interest.

self-ignition，pyrophoricity，breeding-fire，autoignition，self-ignite；

[例句] 较轻的推进器采用液态氢, 较重的采用自燃推进剂. The lighter version used liquid hydrogen, the heavier used hypergolic propellants.

[例句] 磷化氢是一种有毒气体,在空气中可以自燃. Phosphine is a toxic gas which ignites spontaneously in air.

self-recording ；

[例句] 有些新型的自记加速仪使用了一种可以重复充电的二氧化铝电池. Some recent accelerographs employ a lead dioxide rechargeable battery.

[例句] 自记温湿度计是用得最广泛的一种记录仪器,因为它用起来很方便. Thermohygraphs are one of the most widely used recording instruments since they are convenient.

self-important，arrogant，conceited，arrogance，arrogancy ；

[例句] 与众不同之处在于他的骄傲自大和满嘴脏话。 The things that stuck out were his cockiness and his four-letter words.

[例句] 潜意识里的嫉妒常表现为这种傲慢自大。 Unconscious envy manifests itself very often as this kind of arrogance.

self-respect，self-esteem，proper pride，amour-propre，pride；

[例句] 即使穷人也有自尊。 Even the poor have their pride.

[例句] 他的自尊荡然无存。 He was left without a shred of self-esteem.

selfing ；

[例句] 自交能孕性在不同的无性系中是明显不同的. There are obvious differences between clones with regard to their self - fertility.

[例句] 反交和自交通常不包括在内. Reciprocals and selfs are usually excluded.

oneself，of one's own side，closely related，ourself，personally ；

[例句] 成功无法保证，并非唾手可得。成功必须靠自己去争取。 Success is not guaranteed. It is not handed to you. Success is earned.

[例句] 他14岁起就知道自己日后干什么了。 He knew what he wanted to do from the age of 14.

take(a) pride in，be proud of，have a proper sense of pride or dignity，glory in，pride ；

[例句] 那件作品非常漂亮，你应当为之自豪。 That's a beautiful piece of work. You should be proud of it.

[例句] 埃米遇见的准妈妈们个个洋溢着自豪和喜悦。 The expectant mothers that Amy had encountered positively glowed with pride.