Nghĩa là gì:
air hardening 
air hardening /'eəhɑ:dniɳ/ (air-quenching) /'eə,kwentʃiɳ/
hard Thành ngữ, tục ngữ
a hard day
a day full of hard work, put in a hard day You look tired, Dear. Did you have a hard day at the office?
a hard-on
an erect penis, a hard penis When our dog gets a hard-on, he tries to crawl up my leg.
a hard row to hoe
a difficult task, many problems A single parent has a hard row to hoe, working day and night.
a hard time
teasing or bugging, a bad time Ken will give you a hard time about missing that free throw.
between a rock and a hard place
in a difficult position, making a difficult choice, Sophie's choice If I told the truth, I would lose my friend. I was between a rock and a hard place.
cold hard cash
cash, coins and bills I paid for the stereo in cold hard cash.
cold, hard cash
"actual money, dollar bills; not a cheque or credit card" No cheques - I want cold, hard cash for that car.
come down hard
punish hard, throw the book at The teachers come down hard on cheating. They suspend cheaters.
die hard
change slowly, continue to be strong, you can't teach... Some men still want to be the head of the family. Old beliefs die hard.
do it the hard way
use a poor method, go against the grain Don't start a fire with stones. That's doing it the hard way.
drive a hard bargain
pay a low price, negotiate firmly When buying land, Cal drives a hard bargain. He pays low prices.
give (someone) a hard time
make trouble for someone, tease She was giving her boyfriend a hard time about his new haircut.
give you a hard time
tease you, criticize you, a hassle you Did the class give you a hard time about losing their papers?
hard and fast rule
rules that cannot be altered to fit special cases There is no hard and fast rule that says you can
hard as nails
physically very fit and strong, rough, stern He is as hard as nails and is not a good person to have an argument with.
hard at it
working hard, as busy as a beaver When the foreman returned, the workers were hard at it.
hard copy
printed page(s), paper with printed words or pictures You can check your work on the computer screen, but it's easier find errors on hard copy.
hard day
(See a hard day)
hard done by
overworked, asked to do too much With all the help Bonnie gets, she's not hard done by.
hard feelings
unfriendly feelings, resentment "After the argument, Bill said, ""I hope there are no hard feelings."""
hard line
statement or policy that a person refuses to change The principal takes a hard line on school attendance. I must attend.
hard liquor
strong liquor (rum etc.) with 40 % alcohol The bar was serving beer, wine and several kinds of hard liquor.
hard nosed
"firm, tough; refusing to lower his price or standard" Ms. Bond is hard nosed. If you plagiarize, you fail the course.
hard nut to crack
something or someone difficult to understand or do He is a very serious person and is a very hard nut to crack.
hard of hearing
not able to hear very well, partly deaf Now that Grandpa's in his 80s, he's quite hard of hearing.
hard-on
(See a hard-on)
hard on me
makes me work hard, tough on me That job was hard on me. My back is sore from the lifting.
hard on (someone/something)
treat something/someone roughly His son is very hard on shoes.
hard pressed
burdened with urgent business I am a little hard pressed for time. Can we meet later?
hard put
unable to answer easily, stump me He was hard put to answer the questions on cold fission.
hard row to hoe
(See a hard row to hoe)
hard sell
selling something very aggressively and with great eagerness I didn
hard stuff
(See hard liquor)
hard times
a time of poverty and drought and famine We endured hard times in the 1930s. We were all poor.
hard to believe
not easy to believe, difficult to believe It's hard to believe that you're a grandfather. You look so young.
hard to get
(See play hard to get)
hard to swallow
hard to accept, hard to take "She said, ""He has custody of the children. It's hard to swallow."""
hard to take
difficult to tolerate, hard to swallow Her cruel words hurt me. Her sarcasm is hard to take.
hard up
short of money I am hard up for money at the moment so I can
hardware
computer machines and accessories The printer is an important part of your computer hardware.
no hard feelings
no feelings of anger or resentment, no grudges Dad and Paul argue about politics but there are no hard feelings.
play hard to get
"pretend you do not care; you do not want him" When Tom invites you to go on a date, you could play hard to get.
play hardball
play tough, try to hurt the opponent, play dirty If the manager wants to play hardball, show him that you are tough.
play hardball with (someone)
act strong and agressive about an issue with someone The union representatives have been playing hardball during the contract talks.
put in a hard day
work hard all day, a hard day You've put in a hard day, Fran. Let's have supper at a cafe.
school of hard knocks
ordinary experiences of life He learned all about life in the school of hard knocks.
the bigger they are the harder they fall
we can beat the big guys, big players fall harder, mind over matter """Look at all their big players!"" ""Don't worry. The bigger they are, the harder they fall!"""
the hard way
the difficult method, the rocky road If we plan, we can avoid doing our work the hard way.
the school of hard knocks
life's hard lessons, learning from mistakes, roll with the punches "Teachers taught me what I should know; the school of hard knocks taught me what I must know."
times were hard
it was a time of poverty, hard times It was 1850. Times were hard in Sweden then.