1. hard and fast : 严格的；
2. hard by : 在近处；
3. hard upon : 接近于；
4. die hard : (旧习惯等)难改掉, 顽固；
5. be hard put to it : 陷入困境；
6. hard at it : 拼命工作, 工作卖力；
7. be hard pressed : 被紧紧追赶；
8. as hard as nails : 身体结实, 冷酷无情；
9. be hard done by : 受到不公平的待遇, 被苛待；
形容词
1. It takes years of hard work to compile a good dictionary.
编纂一部好词典要花多年心血。
2. George is hard to get along with.
乔治很难相处。
3. Times are hard.
时世艰难。
副词
1. It's raining hard.
雨下得很大。
2. They tried hard to succeed.
他们努力地工作以求得成功。
培训
A：I have to (take an exam/ finish the project/ study hard this summer).
我得（参加一次考试/完成这个项目/今年夏天努力学习）。
B：That’s too bad.
太糟糕了。
参观
B：You‘ll have to wear this hard hat for the tour.
参观时必需戴上这安全帽。
A：This one seems a little small for me.
这顶我戴好像小了一点。
B：Here, try this one.
喏，试试这一顶。
A：That‘s better.
好多了。
学校
B：In that class, we have to (take a test every day/ write a long paper/ read lots of books).
上那堂课，我们需要（每天测验/写一篇篇幅长的论文/读很多书）。
A：What a hard teacher!
老师可真难应付。
1. 硬的：等级5以下str 2 和平的(Restfull) 等级5以上will 1等级15以上lUCk 3等级25以上最大体力增加3\ 牧羊人的(Sheep Raisings)武器 等级15以下str-5等级10以上最大生命力增加3,等级5以上最大体力增加3 硬的(Hard)铁制装饰品 等级5以上str 1,
2. 困难的：一共有两个难度,简单的(easy)和困难的(hard)两级,差别在困难级的方块有经过旋转,可以用左右方向键转回来.
3. hard：hardware assisted resilient data; 硬体辅助资料回复
4. hard：hd.; 艰难的
1. 硬的;坚硬的;坚固的
Something that is hard is very firm and stiff to touch and is not easily bent, cut, or broken.
e.g. He shuffled his feet on the hard wooden floor...
他拖着脚在硬木地板上走动。
e.g. Something cold and hard pressed into the back of his neck.
一个冰冷梆硬的东西顶在了他的脖梗儿上。
adj
1. not easy
requiring great physical or mental effort to accomplish or comprehend or endure
e.g. a difficult task
nesting places on the cliffs are difficult of access
difficult times
why is it so hard for you to keep a secret?
Synonym: difficult
2. characterized by effort to the point of exhaustion
especially physical effort
e.g. worked their arduous way up the mining valley
a grueling campaign
hard labor
heavy work
heavy going
spent many laborious hours on the project
set a punishing pace
Synonym: arduousbackbreakinggruelinggruellingheavylaboriousoperosepunishingtoilsome
3. dried out
e.g. hard dry rolls left over from the day before
4. unfortunate or hard to bear
e.g. had hard luck
a tough break
Synonym: tough
5. resisting weight or pressure
6. dispassionate
e.g. took a hard look
a hard bargainer
7. (of speech sounds)
produced with the back of the tongue raised toward or touching the velum
e.g. Russian distinguished between hard consonants and palatalized or soft consonants
8. (of light) transmitted directly from a pointed light source
Synonym: concentrated
9. being distilled rather than fermented
having a high alcoholic content
e.g. hard liquor
Synonym: strong
10. given to excessive indulgence of bodily appetites especially for intoxicating liquors
e.g. a hard drinker
Synonym: intemperateheavy
11. produced without vibration of the vocal cords
e.g. unvoiced consonants such as `p' and `k' and `s'
Synonym: unvoicedvoicelesssurd
12. very strong or vigorous
e.g. strong winds
a hard left to the chin
a knockout punch
a severe blow