名 host，master，owner，possessor；动 lead，manage，advocate，stand for；形 main，principal，primary，subjective ；

[例句] 在主日学校她是她们班的班花。 She was the belle of her Sunday School class.

[例句] 在主室里，炽热的散热器暴露在外。 In the main rooms red-hot radiators were left exposed.

theme，subject，topical [key] subject，motif，motive；

[例句] 她围绕这个主题添枝加叶地说了大约10分钟。 She embroidered on this theme for about ten minutes.

[例句] 这部戏在对待这一主题上有些理想化，甚至是天真。 The drama takes an idealistic, even a naive view of the subject.

main，chief，principal，major，mostly ；

[例句] 书房把主要的生活区与厨房连在一起。 The study links the main living area to the kitchen.

[例句] 他对语言的误解是引起其他问题的主要原因。 His misunderstanding of language was the primary cause of his other problems.

[机] principal axis，chief axis，main arbor，main axle ；

[例句] 金星具有沿主轴反向自转的特性. Venus has the distinction of spinning " backward " on its axis.

[例句] 随着曲轴的转动, 曲柄销绕主轴作圆周摆动. As the crankshaft rotates, the crankpin swings in a circle around the shaft.

main body，main part，[哲] subject，principal part ；

[例句] 大楼主体的斜墙给人造成一种视错觉。 Sloping walls on the bulk of the building create an optical illusion.

[例句] 为了实现优良的耐用性，主体部分90％采用钛金属制造。 The body is 90% titanium for ruggedness.

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.

[生理] aorta ；

[例句] 腹主动脉一般比胸主动脉小. The abdominal aorta is normally smaller than the thoracic aorta.

[例句] 血从大腿的主动脉涌出. Blood poured from the main artery of the thigh.

democracy，democratic rights，democratic ；

alms giver，benefactor，[物] donor，donor impurity，almsgiver ；

[例句] 这所孤儿院有许多施主. This orphanage has many benefactors.

[例句] 你最好把亲戚关系看得淡一些.免得担那么大的风险,得罪了你的女施主. You had better neglect your relations, than run the risk of offending your patroness.

subjectivity，subjective ；

[例句] 人的感知具有高度缺陷，而且天性主观。 Human perception is highly imperfect and by definition subjective.

[例句] 我太主观了，认为一切都是针对我的。 I take everything too personally.

[机] main engine，master，[军] lead plane，leader，host computer ；

[例句] 大多数公司都一味模仿IBM公司大型主机的设计。 Most have slavishly copied the design of IBM'sbig mainframe machines.

[例句] Digital公司新产品的定价比同类主机的一半还要低。 Digital priced the new line at less than half the cost of comparable mainframes.

[宗] bishop，episcopate，exarch，high priest，pontiff ；

[例句] 戴利主教说他听到红衣主教去世的消息后感到极为震惊和难过。 Bishop Daly said he was devastated by news of the Cardinal's death.

[例句] 我听到有谣传说主教打算离开. I've heard a whisper that the Bishop intends to leave.

customer，buyer，bargainee，purchaser，vendee ；

[例句] 该公司正竭力为其新产品寻找买主。 The company is struggling to find buyers for its new product.

[例句] 买主们千方百计想从供货商那儿无息赊购。 Buyers use different ruses to wring free credit out of their suppliers.

be responsible for，be in charge of，person in charge，charge，director ；

[例句] 被解雇的管理人员包括前销售经理、主管和会计。 The unemployed executives include former sales managers, directors and accountants.

[例句] 他是一位锐意进取、竞争意识很强的主管，颇受尊敬。 He is respected as a very aggressive and competitive executive.

main force，main strength of an army，brunt ；

[例句] 他们的主力阵容以0比4惨败。 Their leading players were being whitewashed 4-0.

[例句] 主力部队开往前线. The main body of troops moved toward the front.

[生] host，parasitifer ；

[例句] 问题在于,我们如何才能做到不伤害宿主只杀死真菌 呢 ? So how do you kill a fungus without harming its host?

[例句] 这种微生物在宿主牛体外, 容易被培养. Outside the bovine host, the organism can be readily cultured.

director，head，chairman ；

[例句] 研究院主任尼尔·豪沃思力图平息事态。 Neil Howorth, director of the academy, tried to calm things down.

[例句] 如果需要进一步了解信息，请咨询教务主任。 If you require further information, you should consult the registrar.

acceptor ；

[例句] 对切花品质的评价受主、客观因素的影响,而且评价标准也是可变的. Quality evaluation of cut flower is affected by subjective and objective factors.

[例句] 而Y2O3既可作为施主, 又可起受主作用. Y 2 O 3 acts not only as a donor, but also as an acceptor.

monarch，sovereign，emperor，king，liege ；

[例句] 他们认为他应该继续履行君主的职责。 They thought that he should resume his kingly duties.

[例句] 君主统治的权力受到了新法律的制约。 The power of the monarchy was circumscribed by the new law.

proposal，opinion，assertion，view，affirmation ；

[例句] 但那并不意味着这种政治主张已经或正在消亡。 But that doesn't mean this brand of politics is dead or dying.

[例句] 被调查者中只有18%的人反对该主张。 Only 18 percent of those surveyed opposed the idea.