1. At times the heat was so fierce they could only travel at night, resting during the day in hammocks slung between trees.
    有时候，炎热是如此的酷烈，以致于他们只能在夜间行走，白天在两棵树之间悬挂的吊床上休息。

2. A child hears it spoken from morning till night and, what is more important, always in its genuine form, with the right pronunciation, right intonation, right use of words and right structure.
    孩子从早到晚都在听人们说这种语言，而且总是以其真实的形式，并且是正确的发音、正确的语调、正确的用词和正确的结构。

3. As late as 1967 the World Health Organization reported 250 million cases of malaria and l million deaths.
    直到1967年，世界卫生组织还报告了两亿五千万个疟疾病例以及一百万个死亡事例。

4. "Remember, it's never too late to change your mind."
    "请记住，改变主意是永远不会太迟的。"

5. "I know. Mom, but I'm already late for school. I don't have time to sit down and eat."
    "我知道，妈妈，可我上学快迟到了，没时间坐着吃。"

6. "I have to run or I'll be late for my first appointment ." She kissed her husband quickly, picked up her briefcase , and started for the door.
    "我得跑着去，不然头次预约就要迟到了。" 她匆匆吻了一下丈夫，拿起公文包，朝门口走去。

7. Acquired Immune Deficiency Syndrome (AIDS) was diagnosed in the United States in the late 1970s.
    艾滋病是20世纪70年代末在美国被发现的。

8. Another couple, now willing to talk about that night, said they heard the first screams.
    另一对刚愿谈及当晚之事的夫妇说他们听到了第一声尖叫。"

9. You should avoid being late for your class.
    你不要误了上课。

10. You mustn´t come home late.
    你不准回家太晚，