1. In these forests there are so many trees, and they grow so close together, that it is hard to move around.
    森林里树木繁茂，不易走动。

2. I am fully prepared for more hard work.
    我已做好一切准备，去迎接更多、更艰苦的学习。

3. It was hard to believe she was the mother of the young lad with her.
    很难相信她就是身旁那个小家伙的妈妈。

4. It was not the sort of bright yellow sun making everything lift up at the edges, almost in fear, that I was used to, but a pale yellow sun, as if the sun had grown weak from trying too hard to shine; but still it was sunny.
    这不是那种我所习惯的、使每一样东西的边缘几乎是颤巍巍地向上翘的那种金黄色的太阳，而是那种淡黄的、好象是一个因过分卖力地想发出灿烂的光芒而变得软弱无力的太阳，但它毕竟也是灿烂的。

5. I worked hard to meet the minimum standards set by the course and to complete assignments on time.
    我尽力达到课程的最低限度的要求，并按时完成作业。

6. In addition to national AIDS programs, working together internationally has begun.
    除了每个国家的艾滋病防治计划外，国际合作也已经开始。

7. In the mid-1870s, French artist Frederic Auguste Bartholdi was working on an enormous project called Liberty Enlightening the World, a monument celebrating US independence and the France-America alliance.
    19世纪70年代中期，法国艺术家弗里德里克·奥古斯特·巴托尔迪正在设计一个大项目，名为"自由照耀世界"。这是一座庆祝美国独立和美法联盟的纪念碑。

8. I turned the plane to the right, but I did it too hard and we went into a steep turn.
    我把飞机向右拐，但用力过大，变成了急转弯。

9. It was a hard job to come by.
    这份工作来之不易。

10. It's hard to avoid being seen on the DMV computer screens, but there are ways to keep a low profile in other areas.
    很难使自己的信息不出现在DMV的电脑屏幕上。但还是有办法在其他方面使自己的情况少为人知。