也门长期以来一直是美国在安全方面关注的焦点。
长期以来水污染一直都是环境问题中备受关注的。
Water pollution has long been a major concern among the environmental issues.
长期以来，危机四伏的经济一直人们关注的重心。
For a long time, the parlous state of the economy was the main issue.
长期以来，经济增长问题一直是学界和政界所关注的热点问题。
Economic growth has been a hotspot to economists and politicians for a long time.
这一题目长期以来一直是学术界极为关注的重大课题。
This question has been the important issue which since long academic circle pays attention extremely.
也门长期以来一直是美国在安全方面关注的焦点。
在中国大学英语阅读长期以来一直备受关注。
Reading in English in the university has long been attached much importance in China.
诚如你所知，因私贿赂是国际商会长期以来关注的话题。
As you know, private sector bribery has long been an issue of concern for ICC.
华侨教育长期以来都是史学界关注的焦点和研究的热点。
Overseas Chinese Education has long been a hot topic in history study.
华侨教育长期以来都是史学界关注的焦点和研究的热点。
Overseas Chinese Education has long been a hot topic in history study.
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