science is( )difficult for most students ( ) understand A to
science is( )difficult for most students ( ) understand A to
For me ,to understand his words is difficult(改为同义句)
Want to really understand a man is difficult这些
—The story is not easy for students to understand.
Newadays it is so difficult for graduate students to find a
To learn to swim is difficult for me(改为同义句) __difficult for
what is the most difficult part of studying science
to understand the problem is very difficult .(改同义句)
why is BBC so difficult to understand?
which letter is difficult to understand
Which letter is difficult to understand?
why is American humour difficult to understand?