One
Easier said than done
Something is a good idea, but is still difficult to do.
"I want to get a 100% on my writing test, but it is easier said than done."
Go the extra mile
To do more than what was expected. To work very hard.
"My fathers will always go the extra mile to help me."
Not the end of the world
Something is not as bad as it seems.
"Yes, I failed my science test, but it is not the end of the world."
On cloud nine
Someone is very, very happy.
"When I was in New York City, I felt on cloud nine."
Shoot for the stars
To set a very high goal or try to achieve something difficult.
"I will shoot for the stars and apply to a S.K.Y. university."
Something is very easy.
"Becoming a doctor will not be a piece of cake."
Out of the blue
Something happened suddenly and/or unexpectedly.
"Out of the blue, a dog ate my sandwich!"
Down to earth
Someone is very kind, realistic, responsible, and humble.
"My mother is very down to earth."
Give someone a hand
To help someone.
"My brother is always there to give someone a hand."
In hot water
Someone is in trouble.
"Suddenly, our car broke, and now we were in hot water."
Rolling in dough
Someone is very rich or has a lot of money.
"After I become a lawyer, I will be rolling in dough."
A stroll down memory lane
To talk about the past.
"My friends and I took a stroll down memory lane."