26. be head and shoulders above 好许多
In calculus. Joe is head and shoulders above his classmates.
27. be in the dark 蒙在鼓里
A: Do you have any idea what his notice is about?
B: I’m as in the dark as you are.
28. be stuck 卡住了
I can’t get this window open. It’s stuck.
29. bite off more than one can chew 贪多嚼不烂
A: I hear you’re taking an advanced physics course this semester.
B: I think I’ve bitten off more than I can chew.
30. break new ground 有了新的突破
His architectural design broke new ground in the field.
