- hard
 - [hɑ:d]
 - adj. 努力的;硬的;困难的;辛苦的;确实的;严厉的;猛烈的;冷酷无情的
adv. 努力地;困难地;辛苦地;接近地;猛烈地;牢固地 
同义词
           
       参考例子
           - 1.It is hard for me to keep silence.
 - 让我保持安静对我来说是很难的。
 
- 2.To sum up, success results from hard work.
 - 总而言之,成功是艰苦努力的结果。
 
- 3.We need to work hard to make a perfect world.
 - 我们要努力工作以创造一个完美的世界。
 
英文解释
           - adj.
 - 1.not easy; requiring great physical or mental effort to accomplish or comprehend or endure
 - 2.dispassionate
 - 3.resisting weight or pressure
 - 4.very strong or vigorous
 - 5.characterized by toilsome effort to the point of exhaustion; especially physical effort
 - 6.produced without vibration of the vocal cords
 - 7.(of light) transmitted directly from a pointed light source
 - 8.(of speech sounds); produced with the back of the tongue raised toward or touching the velum
 - 9.given to excessive indulgence of bodily appetites especially for intoxicating liquors
 - 10.being distilled rather than fermented; having a high alcoholic content
 - 11.unfortunate or hard to bear
 - 12.dried out
 
- adv.
 - 1.with effort or force or vigor
 - 2.with firmness
 - 3.earnestly or intently
 - 4.causing great damage or hardship
 - 5.slowly and with difficulty
 - 6.indulging excessively
 - 7.into a solid condition
 - 8.very near or close in space or time
 - 9.with pain or distress or bitterness
 - 10.to the full extent possible; all the way
 
网络释义
               - Hard
 - 坚硬的; 硬的; 中间; 共享;
 
- Die Hard
 - 虎胆龙威; 终极警探; 虎胆龙威(终极警探); 难消灭;
 
- Hard board
 - 硬质纤维板; 硬纸板; 纤维板; 硬板;
 
- hard facing
 - 硬表面堆焊; 表面硬化; 表面耐磨堆焊; 熔接硬面法,加焊硬面法;
 
- hard porcelain
 - 硬瓷; 硬质瓷器; 硬瓷器; 硬质瓷;