时差N小时 雪橇犬究竟是什么品种?(下)

On film, large dogs seem powerful, but their size decreases their ability to use oxygen efficiently¹.

在电影里，体型巨大的狗狗看似强壮，但其实它们的体型降低了其利用氧气的能力。

In competitive dog-sledding, dogs usually weigh less than 55 pounds and can comfortably trot² over 70 miles a day.

在雪橇犬的竞技中，通常体重不到55磅的狗狗每天可轻松跑70英里。

A sled dog also needs the right temperament³. They must love running and be sociable⁴ and obedient.

雪橇犬的性情也得温和。它们必须热爱奔跑，友善且温顺。

Like wild dogs, each team has a hierarchy⁵, but the dogs struggle for position by taking aggressive or submissive postures⁶ such as squealing⁷ and rolling.

和野狗一样，每个队伍都有等级制度，不过雪橇犬会采取侵略性或顺从的姿势来争夺位置，比如尖叫和滚动。

Real dogfights are rare because the dogs are carefully introduced and trained before going out on the trail.

它们混战的机率很小，因为它们在进入雪橇队前接受了良好的引导和训练。

The careful crossing of northern dogs, like Malamutes, with southern breeds like Greyhounds produces dogs with the right stuff to be sled dogs.

爱斯基摩狗等北方品种与长腿猎狗等南方品种交配得当的话，他们的后代将具备成为雪橇狗的优良基因。

1 efficiently   

adv.高效率地，有能力地

参考例句：

• The worker oils the machine to operate it more efficiently.工人给机器上油以使机器运转更有效。
• Local authorities have to learn to allocate resources efficiently.地方政府必须学会有效地分配资源。

2 trot   

n.疾走，慢跑；n.老太婆；现成译本；(复数）trots:腹泻（与the 连用）；v.小跑，快步走，赶紧

参考例句：

• They passed me at a trot.他们从我身边快步走过。
• The horse broke into a brisk trot.马突然快步小跑起来。

3 temperament   

n.气质，性格，性情

参考例句：

• The analysis of what kind of temperament you possess is vital.分析一下你有什么样的气质是十分重要的。
• Success often depends on temperament.成功常常取决于一个人的性格。

4 sociable   

adj.好交际的，友好的，合群的

参考例句：

• Roger is a very sociable person.罗杰是个非常好交际的人。
• Some children have more sociable personalities than others.有些孩子比其他孩子更善于交际。

5 hierarchy   

n.等级制度；统治集团，领导层

参考例句：

• There is a rigid hierarchy of power in that country.那个国家有一套严密的权力等级制度。
• She's high up in the management hierarchy.她在管理阶层中地位很高。

6 postures   

姿势( posture的名词复数 )； 看法； 态度； 立场

参考例句：

• Modern consciousness has this great need to explode its own postures. 现代意识很有这种摧毁本身姿态的需要。
• They instinctively gathered themselves into more tidy postures. 她们本能地恢复了端庄的姿态。

7 squealing   

v.长声尖叫，用长而尖锐的声音说( squeal的现在分词 )

参考例句：

• Pigs were grunting and squealing in the yard. 猪在院子里哼哼地叫个不停。
• The pigs were squealing. 猪尖叫着。