Military presence and its impact on Japanese residents have been a thorny issue over the years.

多年来，军事存在及其对日本居民的影响一直是一个棘手的问题。

youdao

The question of who should pay for reskilling is a thorny one.

谁应该为再培训买单是一个棘手的问题。

youdao

Design or market research is always a thorny issue.

设计或市场调查一直是一个棘手的问题。

youdao

The secretary reportedly has been trying to mediate between Kurdish leaders and the central government in Baghdad, over a thorny territorial dispute over the oil-rich region of Kirkuk.

VOA: standard.2009.07.29

The real issue lies in how much attention and how much consistency and perseverance we put in strengthening democratic institutions The summit's mostly closed door sessions are taking up several thorny issues, among them a proposal to create an African Defense Council.

VOA: standard.2009.07.02

They're either intended to punt a thorny issue off the agenda for a while, or else to hammer out an emerging solution, as the famous 1983 Social Security Commission managed to do.

NPR: Bush Faces Hurdles in Health Care Reform

Last week, the two governments addressed a thorny issue of recent years with a plan for the United States to relocate about half of its 19, 000 Marines based on Okinawa to other places in the Pacific region.

CNN: Obama affirms strong economic, security ties with Japan

From Baghdad to Okinawa, this is a thorny issue, and now is not a good time in Kabul to negotiate an agreement guaranteeing American troops immunity from local prosecution even after 2014.

ECONOMIST: Afghanistan