It is clumsy, difficult and complicated.
它拙劣，困难和复杂。
Writing a song is not as difficult and complicated as it seems.
创作歌曲并非像看起来的那样复杂艰难。
Efficient separations of platinum metals from each other are quite difficult and complicated.
铂族元素的相互分离相当困难和复杂。
Though we often make meditation complicated and difficult, it is really quite simple.
我们经常使禅修变得复杂和困难，其实禅修真的非常简单。
This is quite a complicated problem and one which is difficult to solve.
这是一个相当复杂的问题，这是一个难以解决的。
It's a complicated, difficult, and vulnerable time of life.
它是一生中的一段复杂、艰难和脆弱的时光。
As programs get bigger and more complicated, they get more difficult to read.
程序会越来越庞大，也越复杂了，读起来就会更难了。
Flame temperature measurement is a complicated and difficult problem.
火焰温度测量是一个复杂而困难的问题。
Its characteristics: the production process complicated and difficult to burn, low yield.
其特点：制作工艺复杂，烧制难度大，成品率低。
The Bridge is technically complicated and the construction is difficult.
该桥施工技术复杂，施工难度较大。
The control system of a blast furnace is complicated and operates under difficult environments.
高炉控制系统复杂，工作条件较差。
Selecting a present is a complicated, sensitive and difficult process.
礼品的选择是一项非常复杂、敏感和困难的过程。
Business is complicated, life is complex, and leadership is difficult.
生意是复杂的，生活是难懂的，领导者是难当的。
It's very complicated and difficult to evaluate the jamming effect on SAR.
对SAR干扰效果的评估是比较复杂和困难的。
As a theoretical and complicated subject, Immunology is difficult to learn.
免疫学是一门理论性强、内容繁杂的学科。
The operation of complicated lumbar spinal stenosis is difficult to operate and has high risk.
复杂性腰椎管狭窄症手术难度大，风险高。
Because of the complicated technology and high price of TDR, it is difficult to popularize.
由于TDR技术实现复杂、价格昂贵，因此在国内难以推广使用。
People are complicated and it's difficult to see all of their soul in one fell swoop.
人是复杂的，一时间很难了解一个人的全部品质。
However, the method is complicated to operate and it is quite difficult to progress its data.
但此方法操作繁琐，数据处理较难。
However, the method is complicated to operate and it is quite difficult to progress its data.
但此方法操作繁琐，数据处理较难。
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