This is a difficult problem的同义句是什么

This is a difficult problem的同义句是什么 This Maths problem is difficult.I can't work it out.的同义句 改为同义句1.This problem is too difficult for me to work out.This To work out this maths problem is difficult.(同义句转换) __diffic To finish this maths problem is difficult(改成同义句） （）（）（） fini I do not think this problem is as difficult as that one 同义句 It's difficult for him to work out this maths problem 同义句是什么 lt's difficult for him to work out this maths problem的同义句 This question is very difficult to answer的同义句 同义句：This question is difficult. This question is difficult(改为同义句) For me,working out that problem is difficult.同义句