1.Quantifying return on investment in relation to marketing spend has always been a thorny issue.
如何量化投资回报率相对于市场营销支出的高低，历来是个棘手的问题。
2.Facebook's privacy problem has always been a thorny issue.
脸谱网站的隐私设置一直是一个有争议的议题。
3.Stylistic translation is an important and yet thorny issue in literary translation.
风格的翻译是文学翻译中的一个重要问题，也是一个难题。
4.Tax arbitrage has always been a thorny issue.
税收套利一直是个棘手的问题。
5.With that thorny issue out of the way the rest followed easily.
这个棘手的问题一经解决，其余的事就好办了。
6.The organizers and participants acknowledge that engagement with an oppressive government is a thorny issue.
组织者和参与者都承认，与高压政府斗争是一个棘手问题。
7.Four years after the Changing Childbirth report, client choice is still a thorny issue for midwifery practice.
四年后的变化分娩报告，客户的选择仍然是一个棘手的问题的助产。
8.As ahead of meetings with Chinese leaders, President Bush hails Taiwan as a model of freedom , raising a thorny issue in Sino-US relations.
布什总统在与中国领导人会晤前承认台湾自主，使中美关系更加复杂。
9.Israel is considering a compromise with the United States on the thorny issue of Jewish settlements.
以色列考虑在棘手的犹太人定居点议题上跟美国妥协。
10.The package appears to dodge a thorny issue: The aides say the F-16 fighter jets that Taiwan covets are not likely to be included.
该方案似乎回避了棘手的问题：该助手说的F-16战机，台湾垂涎不太可能包括在内。