However, people usually have a clear perception of the contradiction between the two and vague knowledge about their identity, which affect their correct application to the real work.
通常，人们对两者的对立性印象清晰，对同一性认识模糊。这影响了实际工作中对它们的正确运用。
Since expert freelancers are usually paid more than generalists, it is a good idea to identify and promote any specialized knowledge that you might have.
通常情况下，自由学者能得到比专家更高的薪金，因此，这就更有必要提高自身所拥有的专业知识。
BACKGROUND. To the authors' knowledge, few population-based studies to date have considered the serial use of colorectal cancer screening tests, which are usually recommended at specific intervals.
据作者所知，现在很少有以人群为基础的关于结直肠癌扫描试验连续应用的研究，而在特殊的时期，这个是被推荐的。
I need to have my own ideas, which are usually based on a good collection of background knowledge and research experience.
我需要有自己的思想，通常要建立在良好的背景知识和研究经验上，在学习的初级阶段，我费了很大的劲才理解了其意义和研究方法。
Migrant workers, many of them poorly educated, usually have little if any knowledge of this deadly infectious disease.
很多民工教育程度较低，对于该致命传染性疾病几乎一无所知。
Migrant workers, many of them poorly educated, usually have little if any knowledge of this deadly infectious disease.
很多民工教育程度较低，对于该致命传染性疾病几乎一无所知。
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