black and white = something which is extremely clear（黑白分明的；绝对的）
He told her in black and white that she couldn‘t leave the house while he was out.
dos and don'ts = the rules （行为准则，须知，注意事项）
There are various dos and don‘ts about driving in the UK.
haves and have nots = people who are rich and those who are not （富人和穷人）
In London you can find the haves and have nots of the population.
ins and outs = the details （细节，始末，详情）
I don‘t know the ins and outs of the situation, so I can‘t really advise you.
kiss and tell = when someone sells a story of themselves and a famous person （泄漏秘密）
The British tabloids are famous for publishing kiss and tell stories.
odds and ends = small pieces of various items （零碎东西，零星杂物）
She made a stew with the odds and ends she found in the fridge.
P's and Q's = manners ( such as please and thank you ) （言行）
Mind your P's and Q's when you visit them!
pros and cons = advantages and disadvantages （赞成和反对）
There are a few pros and cons that we should consider before buying a new house.
rights and wrongs = all the good points and bad points of a situation （事情的真相、全部）
Regardless of the rights and wrongs of company policy, you need to give a month‘s notice.
tried and tested = something which has been well tested （经过反复考验的）
Using salt is a tried and tested way of getting red wine out of a carpet.
ups and downs = good and bad periods following one another in turn（盛衰，沉浮）
They have a lot of ups and downs in their relationship.
back and forth = not to stay still, but to keep traveling between two places （来回地，反复地）
I'm so glad I'm moving. I was getting sick of going back and forth every day. Now my journey to work will be a lot quicker.
dribs and drabs = small unimportant amounts （点滴、少量）
The marathon runners finished in dribs and drabs.
said and done = to have the final word on something （说到底，毕竟）
When it's all said and done, the new reception area is going to be a credit to the company.
cat and mouse = doing something in the same way that a cat plays with a mouse （猫鼠游戏，欲擒故纵）
The guerillas played a cat and mouse game with the much better-equipped army.
trial and error = to do something new by making experiments and occasionally falling 反复试验
The new computer system has been installed. But it‘s a bit trial and error at the moment - nobody really knows how to use it. flesh and blood = your family 家人
I have to help him if I can - he‘s my flesh and blood.
down and out = someone who has no money at all who has to live on the street （贫困的，贫病交迫的）
There are too many young down and outs in London.
by and large = generally （大体上，总的说来，一般的说）
By and large, our customers prefer good service to low prices.
bring and buy = a fair where people try to raise money for a cause by bringing something that other people might want to buy （慈善救济性自由集市）
I‘m making a cake for the school's bring and buy next week.
hide and seek = a children's game where one child hides and the others try to find him / her （捉迷藏）
Someone's been playing hide and seek with the TV remote control again.
to and fro = another way of saying ‘ back and forth ’（往返地，来回地）
I’m exhausted - I've been going to and fro all week!
over and out = something you say to show you have come to the end of your message （通话完毕）
The last thing they heard from the pilot was ‘over and out'.
done and dusted = properly finished （完毕，了结）
Well, that's this project done and dusted. We need a holiday now.
wine and dine = to entertain someone lavishly （以好酒好菜款待客人）
He's well-known for winning and dining his business partners.
bread and butter = your main source of income, or the most important issue （维持生活所需的）
Health and education are the bread and butter issues facing the UK government.
spick and span = ( of a room, house, etc.) completely clean and tidy again （房间、屋子等打扫得干干净净的；整洁的）
Her house is spick and span at all times
wheel and deal = to make deals in a skillful and perhaps dishonest way when buying and selling things （讨价还价，玩弄手段，投机取巧）
If you need a new car, try speaking to John. He‘s a bit of a wheeler and dealer.
