To Sleep On It To have more time to think about something before making a decision
例句：
She must sleep on it before making a final decision.
Where should we go for vacation? Let's sleep on it and decide tomorrow.
You don't have to accept my proposal now, just sleep on it and tell me later.
Know Someone Like The Back Of Your Hand
to be very familiar with something; when you have learned something by heart.
例句：
I know Shakespeare's poems like the back of my hand.
You should know the periodic table like the back of your hand because it will be on the test tomorrow.
She knows the lyrics to this song like the back of her hand.
As Easy As Pie / A Piece Of Cake
something that is very easy to do or learn.
例句：
This math problem is as easy as pie.
This task might seem hard but it is actually a piece of cake.
Learning how to drive is a piece of cake.
Take It Easy
just do things step by step; relax or calm down.
例句：
It was just a misunderstanding; take it easy and let it go.
Don't overwhelm yourself; just take it easy.
Just take it easy at work; we are not in a rush.
To Get The Ball Rolling
to start things; to have something up and running.
例句：
Lunch break is over; let's get the ball rolling again.
We're back to school, let's get the ball rolling.
The weekend is over; let's get the ball rolling at work.
Twenty-Four / Seven (24/7)
always available; available 24 hours a day, 7 days a week.
例句：
7-Eleven is a twenty-four seven convenience store.
I'm available 24/7, so you can call me anytime.
The emergency room is open 24/7.
Once And For All
to do something now and never again.
例句：
Pay for this service once and for all.
Get vaccinated once and for all to cure this disease.
He needs to act once and for all.
To Make The Best Of
to find positive aspects in a bad situation.
例句：
Stop complaining and just make the best of the free trip.
She is the most positive person I've ever known, she can make the best of even in the worst situations.
Because we can't change anything now, try to make the best of it.
Day in and day out (also: day after day; for longer periods of time, year in and year out, year after year)
To do the same thing every day for a long period of time.
例句：
He has been taking care of his paralyzed mother day after day for ten years.
She waited for him to return year after year.
They've worked hard day after day for five years and were able to buy a house.
To Keep One's Word
to honor a promise; to do what one said.
例句：
Don't make a promise if you can't keep your words.
He is a liar who never keeps his words.
I respect people who keep their words.
To Give (Someone) A Hand
to help someone do something.
例句：
I'm cleaning my house tomorrow. Can you give me a hand?
Can I give you a hand with anything?
I gave her a hand when she asked for help.
To Be In (Someone's) Shoes
to try to understand what it's like to be in someone's position / situation.
例句：
If you were in my shoes, you would understand my situation better.
Try to be in my shoes before you criticize me.
If she were in his shoes, she would understand his decision.
None Of Your Business
when something is private and you should not know or ask about.
例句：
Stop asking about my personal issues, it's none of your business.
How much I make a year is none of your business.
My marital status is none of your business.
