Idioms are short phrases that can not be interpreted literally but have
a common meaning. idioms are common in English. Here some examples:
I got to hit the books. Means I have to go study.
My tomorrow plan is up in the air . Means i did not decide or i am uncertain
about what i am gonna do.
rule of thumb is general principal that may be not accurate or incomplete.
e.g. there’s no written scientific rule that you must add oil to boiling water when coo-ki-ng pasta, but it’s a rule of thumb and is practiced by most people so the pasta won’t stick to the bottom of the pan.
a supportive friend might tell you to keep your chin up. When they tell you this, they’re showing their support for you, and it’s a way of saying “stay strong,” you’ll get through this. Don’t let these things affect you too badly.
Mathematics is over my head
More complex or confusing than one can understand; beyond one’s comprehension.
If you find yourself in a new situation, for example living in a new country and having to get used to a new college, you could say I’m still finding my feet. It means that you’re still adjusting and getting used to the new environment.
eg. “Lee, how’s your son doing in America?”
“He’s doing okay. He’s learned where the college is but is still finding his feet with everything else. I guess it’ll take time for him to get used to it all.”
This latter is almost the same idiom in Algerian dialect.