1. Each week a computer totals the average length of your calls; if it is under 14 minutes, you're in trouble.
    每周，电脑会累计你所接听电话的平均长度；如果不到14分钟，你就有麻烦了。

2. We discussed the matter at full length.
    我们详细地讨论了这件事。

3. The problem will be discussed at length in subsequent chapters.
    这个问题将在后面几章详细讨论。

4. The metre is a unit of length.
    米是长度单位.

5. The village seemed deserted, the only sign of life being an ugly-looking black goat on a short length of rope tied to a tree in a field nearby.
    村里似乎无人居住，唯一的生命迹象是附近田里一只面目可憎的黑山羊，用一截短绳拴在一棵树上。

6. The fish are not sharks or killer whales, but favourite eating varieties like cod and skate which grow to unnatural sizes, sometimes as much as twelve feet in length.
    这些鱼并不是鲨鱼或逆戟鲸，而是深受人们喜爱的食用鱼品种，如鳕鱼和鳐鱼，只不过它们长得出奇地大，有时长达12英尺。

7. He has had the length of the wings increased so that they now measure 93 feet-almost as long as those of a Dakota.
    他把机翼的长度增加到九十三英尺，几乎与 Dakota 飞机的机翼差不多长。

8. He sought the advice of the astronomer Sosigenes, who suggested that the true length of the year be adopted as 365 1/4 days.
    他去请教天文学家索尼西斯的意见。索尼西斯建议一年的真实长度应采用365.25天。

9. A wave length (the horizontal distance between two wave crests),
    波长（两个浪峰间的水平距离）

10. And a period (which is the time it takes a wave crest to travel one wave length).
    和周期（海峰走过一个波长所需的时间）。