It is clear that the primary duty of parents is to provide protection for our children.
很明显，父母的首要职责就是为孩子提供保护。
Silk had become one of the primary goods traded along the Silk Road by about 100 BC.
至公元前100年左右，丝绸已经成为丝绸之路上的主要贸易商品之一。
I don't know if we will consider AOP the primary design mechanism when we build systems.
我不知道我们是否会在构建系统时将 AOP视为主要的设计机制。
The primary growing medium, what the plants draw nutrients from, is actually soil, not water.
主要的生长介质，也就是植物吸收营养的来源，实际上是土壤，而不是水。
The primary goal of a university is to train talents, and teaching is the main way to cultivate talents.
高等学校的首要目标是培养人才，教学是培养人才的主要途径。
The primary goal of laws requiring extended producer responsibility is to transfer the cost to the producers.
这些要求扩大生产者责任的法律的主要目的是为了将成本转移给生产者。
There are many who argue that corn ethanol should replace fossil fuel gas as the primary source for running cars.
许多人认为，玉米乙醇应该取代化石燃料气体，成为汽车的主要燃料。
One of the primary goals of an educator should be to help students develop the desire and ability to think on their own.
教育者的主要目标之一应该是帮助学生培养独立思考的愿望和能力。
The unintentional consequence has been to halt the natural eradication of underbrush, now the primary fuel for megafires.
意外\的后果是阻止了对灌木丛的天然清理，而它们现在成了超级大火的最主要的燃料。
The ruling, though it may yet be reversed, sets aside the principle that biology is the primary determinant of parentage.
虽然这一裁决可能会被推翻，但它摒弃了“生物学是亲子关系的主要决定因素”这一原则。
Parallel rails had long been used in mining operations to move bigger loads, but horses were still the primary source of power.
在采矿作业中，平行铁轨早已被用来运送大件的货物，但马匹仍然是主要的运输工具。
Wood, the primary source of heat for homes and industries and also used in the iron industry as processed charcoal, was diminishing in supply.
木材是家庭和工业的主要热源，也以加工木炭的形式用于铁工业，它的正在减少。
Requiring companies to make gender the primary qualification for board membership will inevitably lead to less experienced private sector boards.
要求公司将性别作为董事会成员资格的首要条件，将不可避免地导致私营部门董事会经验不足。
The convenience of public conveyance would encourage commuters not to use their cars, which is the primary reason for bad traffic in many cities.
公共交通工具的便利将鼓励通勤者不使用他们自己的汽车，使用自己的汽车是许多城市交通拥堵的主要原因。
Should the use of rewards fail, members can frequently win by rejecting or threatening to ostracize those who deviate from the primary group's norms.
如果使用奖励失败了，通过拒绝或威胁来排斥那些偏离主要群体规范的人，成员可以经常获胜。
The primary function of the Committee for a better Oak City is to advise the city government on how to make the best use of the city's limited budget.
建设更好的橡树城委员会的主要职能是就如何充分利用城市有限的预算向市政府提出建议。
He points out that it is possible to identify specific factors as the primary causes of a particular historical event only relative to an initial set of background conditions.
他指出，只有相对于初始的背景条件，才有可能将特定因素确定为特定历史事件的主要原因。
Because they cannot verbalize or fill out questionnaires, indirect techniques of naturalistic observation are used as the primary means of determining what infants can see, hear, feel, and so forth.
由于婴儿不能用语言表达或填写调查问卷，自然观察法的间接技巧被用来作为判断他们能看到、听到、感觉到什么等等的主要手段。
It is not the primary tumour that kills, but secondary growths elsewhere in the body.
致命的并不是原发肿瘤，而是在身体其他部位的继发。
These patients had been operated on for the primary cancer but there was evidence of secondary tumours.
这些病人曾因原发性癌症做过手术，但是又有了继发性肿瘤迹象。
Following these policies, the primary school launched an "agricultural class base" on one of its schoolyards.
遵照这些政策，这所小学在其中一个操场上开设了“农业课基地”。
"Some parents do everything for their children," says Yan Mei, an official with the primary school, adding that many students are short of the basic skills needed in their daily lives.
“有些家长为孩子包办一切，”这所小学的一名官员闫梅说，她还补充道，许多学生缺乏日常生活所需的基本技能。
American imagery—the cars, the cities, the cowboys—became the primary imagery of film.
美国的形象——汽车、城市、牛仔——成为了电影中的主要影像。
I ran down the stairs, out of the school's front doors, and down the street to the primary school.
我跑下楼梯，出了学校的前门，沿着街道来到小学。
A location called Chicxulub, along the Yucatan coast, has been suggested as the primary impact site.
位于尤卡坦海岸的一个叫希克苏鲁伯的地方被认为是主要的撞击地点。
One of the primary benefits of reading books is its ability to develop your critical thinking skills.
读书的主要好处之一是它能培养你的批判性思维能力。
The U.S. takes the opposite approach by emphasizing the specialist rather than the primary care physician.
美国采取相反的方法，强调专科医生而不是初级保健医生。
Agriculture and fishing formed the primary sector of the economy in the Netherlands in the seventeenth century.
农业和渔业是17世纪荷兰经济的主要部分。
For example, the stronger the primary group ties of a sports team playing together, the better their record is.
例如，在一个一起比赛的运动队中，主要团体之间的关系越紧密，他们的成绩就越好。
The astrolabe had long been the primary instrument for navigation, having been introduced in the eleventh century.
自11世纪星盘被引入以来，它一直都是航海的重要工具。
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