The bridge crosses the river in a single span.
河上的桥为单跨桥。
"With the first subject, after about 20 hours of training, his digit span had risen from 7 to 20," Ericsson recalls.
“对于第一个实验对象，经过大约20小时的训练，他的数字跨度从7上升到20。”爱立信回忆道。
This in itself is an almost incomprehensible span of generations, and one that makes Australia's rock art the oldest continuous art tradition in the world.
这本身就是一个几乎难以理解的跨越几代人的过程，这使得澳大利亚的岩石艺术成为世界上最古老的持续的艺术传统。
The apartment was spick-and-span.
这套公寓非常干净整洁。
The kite has a span of 1.5 metres.
风筝宽1.5米。
Managers have a wide span of control.
经理的职权范围很大。
Their house is always spick and span.
他们家总是收拾得清清爽爽。
Small children have a short attention span.
幼儿注意力持续时间短。
The batteries had a life span of six hours.
电池的使用寿命是6小时。
I worked with him over a span of six years.
我和他共事达六年之久。
These forests cover a broad span of latitudes.
这些森林绵延在多个纬度上。
Small children have a very short attention span.
幼儿的注意力持续时间很短。
These changes have occurred over a long time span.
这些变化经过了很长一段时间才形成。
It is a very pretty butterfly, with a 2 inch wing span.
它是一只非常漂亮的蝴蝶，翅膀张开有2英寸宽。
The project must be completed within a specific time span.
这项工程必须在规定期限内完成。
His ability to absorb information was astonishing, but his concentration span was short.
他吸收信息的能力让人惊讶，但他的注意力持续时间很短。
我们的寿命是有限的。
Every organism has a life span which is highly characteristic.
每个生物体的生命周期都极其独特。
The expected life-span of Beijing residents has gone up to 75.
北京居民的预期寿命已经达到75岁。
The images that survive in this part of the world span at least 20,000 years.
在这个地区保存下来的图像至少有2万年的历史。
Most of the improvements in life span are the result of preventive, rather than treatment.
大多数寿命的延长是预防的结果，而不是治疗的结果。
Thus they are not able to "experience life" and so they attain a high life span in captivity.
因此，他们不能“体验生活”，从而在囚禁中获得了较长的寿命。
Nevertheless, a restricted life span, ageing, and then death are basic characteristics of life.
然而，有限的寿命、衰老和死亡是生命的基本特征。
Experience will show that to live in this way not only increases the life span but is also very healthy.
经验会表明这样的生活方式不仅能延长寿命，而且是非常健康的。
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