英和和英

the question of the hour

a knotty problem

a problem

a baffling problem

a vexing problem

an off issue

a side issue

a side question

the race problem

an elusive problem

the rootedness of the problem

a mystifying problem

an intricate problem

the revival of a question

the maintenance-or-abolition question

a stiff problem

squaring the circle

a trifling matter

a shogi problem

a sticky question

a touchy subject

a nasty problem

a weighty problem

the other side of the question―the reverse of the medal

an intractable problem

a labyrinthian problem

the housing problem

peripheral issues

a burning question

an arithmetical problem