And the third is the most challenging issue: the international coordination….
The most challenging issue of all may be how to share the country's oil wealth.
Perhaps the most challenging issue for Ms. Gillibrand is her record on guns.
Li Shuo, climate campaigner with Greenpeace said the issue of common but differentiated responsibilities is "the most challenging issue" for next year's climate change summit in Paris.
If the congress cannot address the bread-and-butter issues, it has failed to tackle the most challenging issue for most people".
The most challenging issue has been funding – both the disbursement of funds from donors and the government of Sierra Leone's own finances, with a recent press notice detailing the austerity measures the government was introducing in response to the severity of its economic situation.
The most challenging issue right now, is how to implement real foraging robots.
During these expeditions, the most challenging issue hasn't been the heat, the scorpions, or the lions.
Actually, benefits conversion into monetary values is the most challenging issue.
However, radioresistance and side effect remain as the most challenging issue.
