And so they each had to present... Each one wrote a term paper on one problem.

那么每个学生都要。,每名学生都要就一个问题写期末论文。

普林斯顿公开课 - 人性课程节选

The citizenship test given to candidates is unlikely to present a problem.

BBC: Profile: Mark Carney

The situation is said to present a unique problem for Western security and intelligence services.

BBC: Newspaper review: Press react to new Pope Francis

Biofuels have come to present a special problem because biogenic carbon is excluded from fossil-based caps as proposed to date even though (like most forms of bioenergy) their production is intrinsically coupled to terrestrial carbon stocks.

FORBES: Rethinking Life-Cycle Fuel Regulations