This expression is used mainly in speech, not in writing.
这种表达主要用于口语，而不是书面语。
The satellite will be used mainly to relay television programmes.
这颗卫星将主要用来转播电视节目。
Every square metre of soil was used, mainly for olives, vines, and almonds.
每一平方米的土壤都用上了，主要是种植橄榄、葡萄藤和杏树。
The population almost doubles in summer, mainly because of the jazz festival.
主要由于爵士音乐节的缘故，在夏季这里的人口几乎比平时多一倍。
Recycling helps the environment mainly by saving energy.
回收利用主要是通过节约能源来改善环境。
I'm a designer. I design leather goods, mainly shoes, and handbags.
我是个设计师。我设计皮具，主要是鞋子和手袋。
The tourists come mainly because of the friendliness of the people there.
游客来主要是因为那里的人很友好。
The Arctic foxes feed mainly on birds, birds' eggs and other small animals.
北极狐主要以鸟类、鸟蛋和其他小动物为食。
Most students attend a university mainly to acquire the knowledge needed for their chosen profession.
大多数学生上大学主要是为了获得他们所选择的职业所需的知识。
If a pajama party is mainly for fun, a prom is no doubt a very important thing in most American schools.
如果说睡衣派对主要是为了好玩，那么毕业舞会无疑是大多数美国学校非常重要的一件事。
Now hair, whatever it is for and wherever it is on the human body, is composed mainly of a protein called keratin.
不管毛发是用来做什么的，也不管它在人体的哪个部位，它都主要由一种叫做角蛋白的蛋白质组成。
It does point out that many parents still limit electronic reading, mainly due to concerns about increased screen time.
它确实指出，许多家长仍然限制电子阅读，主要是担心孩子们看屏幕的时间越来越长。
After hundreds of years, its military function was gradually forgotten and the tower served mainly as a picturesque spot.
数百年来，塔楼的军事功能逐渐被遗忘，而主要被当做风景如画的景点欣赏。
So we'll have to take into account what the room will be mainly used for, since music requires more reverberation than speech.
因为音乐演奏比起演讲来说，更需要回声，所以我们必须考虑房间的主要用途。
The Chinese built their pagodas in brick or stone, with inner staircases, and used them in later centuries mainly as watchtowers.
中国人用砖或石头建造他们的宝塔，内部装有楼梯，在后来的几个世纪里主要用作瞭望塔。
Play appears to be a developmental characteristic of animals with fairly sophisticated nervous systems, mainly birds and mammals.
玩耍似乎是具有相当复杂的神经系统的动物（主要是鸟类和哺乳动物）的一种发育特征。
The Chinese people's evaluation of Cao Cao mainly comes from the Romance of the Three Kingdoms by Ming Guan novelist Luo Guanzhong.
国人对曹操的评价主要源于明代小说家罗贯中所著的《三国演义》。
This thesis is intended for the study of fictional dialogue in the narrow sense, mainly in the form of direct speech within quotation marks.
本文的研究对象是狭义的“小说对话”，主要表现形式是小说中的直接引语。
As predicted, the birds incubated in the light looked for food mainly with their right eye, while using the other to check out the predator.
正如预测的那样，在光线下孵化的小鸟主要用右眼寻找食物，而用另一只眼睛观察是否有捕食者。
While many programs designed for preschoolers focus primarily on social and emotional factors, some are geared mainly toward promoting cognitive gains.
虽然许多为学龄前儿童设计的项目主要关注社交和情感因素，但也有一些项目主要为提升认知能力而设置。
In studying these outbreaks, scientists have discovered that affected trees fight back by releasing toxic chemicals, mainly phenols, into their foliage.
在研究这些疾病爆发的过程中，科学家们发现受影响的树木会向树叶中释放以酚类物质为主的有毒化学物质进行反击。
For example, trained observers obtain a very large amount of information about a star mainly from the accurate analysis of the simple lines that appear in a spectrum.
例如，经过训练的观察者主要通过对光谱中出现的简单线条的精确分析来获取关于恒星的大量信息。
To treat their poems mainly as documents of personal experience is not just to diminish the poets' achievement, but to ignore their unanimous disdain for the idea of confessional poetry.
把他们的诗歌主要看成是个人经历的文献，不仅贬低了他们的成就，而且忽视了他们对自白诗的一致鄙视。
Daron Rahlves takes risks mainly for change and excitement.
达伦·拉尔维斯冒险主要是为了追求改变与刺激。
I chose China mainly because I learned Chinese when I was young.
我选择中国主要是因为我年轻时学过中文。
Golden monkeys are mainly found in Sichuan, Gansu, and Shaanxi provinces.
金丝猴主要分布在四川、甘肃和陕西三省。
The story mainly tells us that we should have a positive attitude towards life.
这个故事主要告诉我们，我们应该有一个积极的生活态度。
Andreev founded the first balalaika orchestra in the world, mainly using balalaikas to perform.
安德烈夫创立了世界上第一个三弦琴管弦乐团，这个乐团主要使用三弦琴进行演奏。
Today green algae live mainly in freshwater, suggesting that their early evolutionary history may have occurred in freshwater habitats.
如今的绿藻大多生活在淡水水域中，这一点说明它们的早期进化史可能起源于淡水生境。
Today green algae live mainly in freshwater, suggesting that their early evolutionary history may have occurred in freshwater habitats.
如今的绿藻大多生活在淡水水域中，这一点说明它们的早期进化史可能起源于淡水生境。
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