PROFESSOR:What is the main difficulty so far?
n. in difficulty;in difficulties：遭遇困难的；身处困境的
Rumours spread about banks being in difficulty.
He went to the aid of a swimmer in difficulty.
You have to admit that you are in difficulties.
They got into difficulties with the mortgage payments.
the difficulty of getting accurate information
exam questions of varying difficulty
The injured man mounted his horse with difficulty.
He stood up with difficulty.
We found our way to the meeting place without difficulty.
I have difficulty getting up in the morning.
I had great difficulty in understanding what she was saying.
The main difficulty is a shortage of time.
The country is facing great economic difficulties.
We're still having difficulties with the new computers.
They may raise difficulties about the contract.
We may be able to help them out of their current difficulty.
The difficulties they are experiencing are caused by a lack of trained personnel.
Their difficulties are financial rather than marital.