The origin of most of our domestic animals will probably forever remain vague.

Cows are considered to be domestic animals.

牛被认为是家畜.

Agricultural lands are those used for crop cultivation or grazing by domestic animals.

农业土地是用于作物栽培或家畜放牧的土地.

Some other like sheep and dogs are kept by men and they are called domestic animals.

另一些像人们养的绵羊和狗,被称为驯养动物.

Domestic animals run out of their stalls.

家畜从圈中奔出.

Horses, dogs, cats, cows, and pigs are domestic animals.

马, 狗, 猫, 牛及猪都是家畜.

He is mentally ill and cannot be held responsible for his actions.

他有精神病，不能对自己的行为负责。

It is by no means easy to promote political restructuring in such a big country with 1.3 billion people. It requires a stable and harmonious social environment and it needs to be taken forward in an orderly way under the leadership of the Party.

在一个拥有13亿人口的大国推进政治体制改革并非是一件容易的事情，需要有稳定的、和谐的社会环境，在党的领导下有序地进行。

Many people are aware of watercolor painting is by no means easy to send the water, which require constant painting artists in the accumulated experience in the painting in the study and understanding of the characteristics of watercolor.

很多人都知道水彩画寄水作画不易控制，这就需要画家在不断的写生中积累经验，在写生中研究和了解水彩的特性。

Therefore, the true meaning of a metaphor which goes beyond its literal sense, is self-evident for native speakers, but by no means easy for foreign or second language learners to understand.

它的真义游离于字面意义之外，对本族人来说是不言而喻的，而对于二语学习者而言，则会形成不小的理解难度。

Fishing and hunting background of natural halo of ink and paper, so by no means easy to freehand, were among the fuzzy rules to better reflect the relationship between plane and three-dimensional.

渔猎自然晕化的背景决非在宣纸上泼墨那么轻松写意，于模糊之中显规矩，更好地体现平面和立体间的关系。

The task was by no means easy given the extremely tight deadline; indeed the book would not have been possible without the excellent cooperation of each and every author.

完成这项任务的期限是非常紧张的；事实上如果没有每位作者出色的合作，这本书是不可能完成的。

It is by no means easy for a large country with a population of1.3 billion to maintain such a fast growth rate for28 years in a row.

对于一个拥有13亿人口的大国，要保持28年的连续快速增长绝不是一件容易的事情。

Dressing for professional jobs is by no means easy for young women, as the Wall Street Journal's Christina Binkley has written.

本报记者克里斯蒂纳•宾克利（Christina Binkley）曾写道，对年轻女性来说，选择职业着装并不是容易的事情。

Despite its presence within all religious traditions, extreme self-sacrifice is by no means easy to explain.

虽然在所有的宗教传统中都存在着极端的自我牺牲现象，但要对它加以解释却并非易事。

In the process of translating Chinese idioms into English, cultural information is by no means easy to be fully conveyed.

汉语成语的翻译中较难的是其文化信息的传达。

Once you have formed a bad habit, it is by no means easy to get rid of it.

一旦你养成了一个坏习惯，绝不容易改正。

Methods are available for the measurement of absolute velocity constants but they are by no means easy to apply.

虽然某些方法对测定绝对速度常数是合用的，但不容易实施。

It is by no means easy to become close and lasting allies with business partners.

与商业伙伴成为亲密且持久的盟友决非易事。

It's by no means easy for a new product to find acceptance among modern consumers.

在现代社会中，要使一个新产品为消费者所接受决非易事。

First, it is by no means easy to understand classical Chinese poetry.

第一，中国古典诗歌的理解本就很难。