1. Our institutes of technology, built with European and American aid, offered students free room and board, even salary.
    我们的技术学院是用欧洲和美国的援助建造的，向学生们提供免费膳宿，甚至还给发薪水。

2. Once there, he would cling to the hand-rail until he reached the lower steps that the warmer tunnel air kept free of ice.
    一到那儿，他就紧抓着地铁通道口的扶手一直往下走，因为地铁内空气暖和,下面几级台阶没有冰雪。

3. I´d like to see Europe as a nuclear-free zone.
    我希望看到欧洲成为无核区。

4. Who rolled balls down inclined planes, and then generalized the results of his many experiments into the famous law of free fall.
    他是那个使地球体沿斜面向下滚动，然后将多次实验结果概括成著名的自由落体定律的人。

5. Indeed, the concept of free speech only exists in our modern society
    的确，言论自由的概念只存在于我们现代社会中，

6. In recent years, the government has waged a massive ad campaign to encourage birth control, offering inducements such as free trips to Mecca, the birthplace of Islam in Saudi Arabia.
    印尼政府近几年来已发动了一场大规模的广告宣传运动来鼓励节制生育，并提出了鼓励措施，如提供免费去沙特阿拉伯的麦加-伊斯兰教的诞生地-的机会。

7. I was free at last to get to the ticket counter to check my luggage.
    我终于可以自由地到检票处去托运我的行李了。

8. If this keeps up, I'll be moving for free and going nowhere.
    要是再继续这样下去，我就不用付搬家费了，可家还是搬不成呀。