Some walked on two legs; some walked on four.
有些生物两只腿走路，有些四只腿走路。
A tablet engraved about 3000 B.C.E. provides the earliest known example from Sumer, a roofed boxlike sledge mounted on four solid wheels.
来自公元前3000年左右的一块苏美尔的雕刻陶土板提供了已知最早的例证：一个带顶棚的箱状雪橇被安装在四个实心的轮子上。
These carnivores live only on four small islands in the archipelago where, scientists note, the prey base is too small to support mammalian carnivore.
科学家指出，这些食肉动物只生活在群岛中的四个小岛上，那里的猎物基数太小，哺乳类食肉动物无法生存。
它用四条腿走路。
Margaret Thatcher was also said to get by on four hours a night, while the 130-hour workweeks endured by tech heads has been held up as key to their success.
据说，玛格丽特·撒切尔每晚只睡4个小时，而技术负责人每周工作130个小时，这一工作时长是他们成功的关键。
四年了。
On vinyl, it's four tracks each on four sides.
黑胶唱片的每一面都有四条音轨。
That's 17 years if the bulb is on four hours a day.
如果每天使用4个小时，那LED灯泡可以使用17年之久。
On four days and nights a NOAA plane crisscrossed the metropolis.
有四个白天和晚上，美国国家海洋和大气管理局的一架飞机沿十字飞过这个大都市的上空。
How do you go about it? I want to focus on four things you could do.
你该如何着手努力？我想重点说说四件你能做到的事情。
The same is happening with business travellers on four-hour journeys.
对于四个小时商务旅行的商务旅行者也是同样的。
Mexico rank second on four points with four goals scored and three lost.
墨西哥队进4球失3球积4分，排名第二。
This article focuses on four small systems: NIEM, XML Schema, XSLT, and XForms.
本文主要关注四个小系统：NIEM、XMLSchema、XSLT和XForms。
SCA is built on four key concepts: services, components, composites, and the domain.
SCA建立于四个关键概念之上：服务、组件、复合组件和域。
To this end, MPS focuses on four strategic areas, in cooperation with regions and countries.
为此，确保母婴平安司与各区域和各国合作，着重关注四个战略领域。
The question, then: Why stand and walk on two legs when our ape Cousins get by on four limbs?
问题就随之而来了：为什么在我们的类人猿亲戚们还在用四肢行走的时候，我们就已经直立并用两足行走呢？
Following the code area, the MBR stores data on four partitions, known as primary partitions.
在这个代码区域之后，MBR存储数据在4个分区上，这些分区称为主分区。
Hang it with gold hooks on four posts of acacia wood overlaid with gold and standing on four silver bases.
要把幔子挂在四根包金的皂荚木柱子上，柱子上当有金钩，柱子安在四个带卯的银座上。
Its striking costumes "paved the way for the open-work sculptures Picasso would embark on four years later".
其张扬的服饰“为毕加索四年后将着手的透雕细工雕塑打下了基础”。
The iMainGo 2 model runs on four AA batteries, while the iMainGo X uses a rechargeable lithium-ion battery.
IMainGo2通过4颗AA电池运作，iMainGoX使用的是充电锂电池。
Ron Connolly sometimes had to function on four hours of sleep or less when he worked as an air traffic controller.
在做飞行塔台控制员的时候，Ron Connolly有时要在只有四小时甚至更少的睡眠时间下工作。
The following example illustrates the cdr realize template command for four databases on four different servers
下面的例子演示了cdrrealizetemplate命令，在这个例子中，具有4 个不同的服务器，每个服务器上各有一个数据库。
The simplest is purify_watch (addr), which sets a read-write watch point on four bytes starting at the given address.
最简单的是purify_watch (addr)，它在特定地址的四个字节上设置了一个读取-写入观察点。
Since May of last year those visitors have been here on four occasions in the Premier League or Champions League.
自从去年5月，这两只球队共作客4场英超或欧冠的比赛。
On four separate occasions, she burned herself on the stove when she let herself get wrapped up in thoughts of him.
她恍恍惚惚沉浸在对他的思念之中，有四次被炉子灼伤。
Robert Neuwirth spent two years living in squatter cities on four continents to research his amazing book Shadow cities.
RobertNeuwirth花了两年时间，住在四个大陆上的贫民窟为了研究他超棒的书《影子城市》。
Mr Assange's lawyers had challenged a European Arrest Warrant (EAW), normally enforced automatically, on four main grounds.
阿桑奇的律师对通常是自动强制执行的欧洲逮捕令（European Arrest Warrant）在四个主要方面提出质疑。
So scenario planning may focus on four, five, or six scenarios that you can envision, at the expense of others you can't.
所以情况规划会将焦点集中在四种、五种、六种你能预想到的情况上，而其他的情况的代价你没法考虑。
So scenario planning may focus on four, five, or six scenarios that you can envision, at the expense of others you can't.
所以情况规划会将焦点集中在四种、五种、六种你能预想到的情况上，而其他的情况的代价你没法考虑。
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