have a mountain to climb 還有很大的進步空間（還有一座山在前方等著你去爬）
Some have worked fairly hard, but may have to go the extra mile in order to be sure of passing the exams well. Others among you, and I suspect they are too numerous to mention, have left themselves a mountain to climb. They will have to study very hard and do a great deal of revision if they are going to pass the forthcoming exams.
片語: have a mountain to climb 還有很大的進步空間（還有一座山在前方等著你去爬）
相似詞：have it all to do
To have a great deal to do if you are to achieve your goal.
1. Tim has just newly entered the election for club president and he has a mountain to climb to persuade enough people to vote for him.
2. Bob is training really hard for the marathon race, but he has a mountain to climb to get as fit as the leading competitors.