1. I found it hard to keep my balence on the ice path.
    在这条结冰的小路上我走路不稳.

2. It´s not their weight that makes these sacks hard to carry, it´s their bulk.
    这些袋子难於搬运, 倒不是因为重而是体积太大.

3. In the gathering gloom it was hard to see anythingdistinctly.
    光线越来越暗, 什麽东西都看不清.

4. It is hard for an inveterate smoker to give up tobacco.
    老烟鬼很难戒烟。

5. It´s hard to say.Usually,it takes twenty -five minutes.
    很难说,通常需要二十五分钟.

6. It is hard for us to realize nowadays how difficult it was for the pioneers.
    登山先驱者登山的艰难, 我们现在是无法理解的.

7. I must study hard to recover the lost time.
    我一定要努力学习来补上失去的时间。

8. I slapped my face hard. The slaps kept me awake. I pushed on through the snow.
    我重重地打自己的耳光.这使我保持清醒.我在大雪中努力前进.

9. It was hard to walk through the swamp.
    要走过沼泽地是困难的。

10. It is hard for us to realize nowadays how difficult it was for the pioneers.
    我们今天很难想像昔日的登山先驱们是多么艰苦。