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- It' s hard finding time to study ( the subject ). 很難找出時間來學習（這門學問）.
- It' s hard to define exactly what has changed. 很難解釋清楚到底發生了什麽變化.
- IT'S hard to fininsh this task in less than a week. 要在不到一周的時間內完成這項工作，是件困難的事情。
- It』s hard to say go out there and play a game offensively. 很難說讓他們上場去打出一場美妙的進攻。
- It' s hard to readjust ( oneself ) to life in Britain after working abroad. 在國外工作之後; 很難重新適應英國的生活.
- Everything from homogeneous pure chemicals to the most heterogeneous of minerals, overing the whole spectrum of the Mol hardness scale, except maybe diamond. 什麼都可以，從純的均勻化學物質到大多數非均勻的礦物，範圍覆蓋整個莫氏硬度，也許只有鑽石除外。
- Teacher Judy Garber says it」s hard to get the kids away from the computers. 加利福尼亞聖卡洛斯的阿讓代爾小學可以說是美國最先進的在線學校。
- Eath time a new axis of tavel is used, the robot』s hard stops must be changed. 每當要用到一個新的行程路徑時，自動裝置必須改變硬機械。
- The twi are so much alike that it『s hard to distinguish between them. 兩個又胞胎如此相似，以至於很難區分他們。
- With the hectic pace of life these days, it』s hard to find a moment of peace. 現代生活繁忙的節奏中，要找到一個平和的時刻也是很困難的。
- Use this utility to copy DOS and NetWare drivers to your computer』s hard disk. 第二章講述8098單片機的基本結構，包括硬體和軟體的組成；第三章講述中央處理器的基本概念；
- It' s hard to keep track of ( ie maintain contact with ) all one' s old school friends. 與中學時的所有老校友都保持聯繫是很困難的.
- The results might explain why it" s hard to tickle yourself, scientists said today. 而這一結論也就能對為什麼人們胳肢自己時感覺不到癢的現象做出解釋。
- It' s hard to choose between the two candidates : they' re both much of a muchness. 很難在這兩個候選人中作選擇; 他們倆不分上下.
- Moh rs hardness scale 莫氏硬度計
- HBE-3000 Electronic Brinell Hardness Tester with 10 steps testing force is able to measure hardness values with each 10 Brinell hardness scales. 電子布氏硬度計具備了10級試驗力，可分別測試布氏硬度的10種標尺。
- Soon after loading VNC onto my computer, I was riffling through Joel' s hard drive. 然後，我迅速把VNC裝載到我的計算機上，這樣，我就可以"翻查"喬爾的硬碟了。
- SLD: It』s hard to synthesize software now.Is it possible to synthesize the interconnect? SLD: 目前很難進行軟體的綜合設計，將互聯產品進行綜合設計是否可能？
- Moh's hardness scale 莫氏硬度計
- Well it』s hard to guess how its honoree might feel about cows chewing leisurely on his visage. 至少，這幅乾草作品作為對愛因斯坦的獻禮堪稱獨特。
