A pair of robots usually carries the surgical instruments, while a third relays images through an endoscope.
通常，两个机器人手执手术器械，第三个用内窥镜传递图像。
A further quarter book short breaks only two to four weeks ahead, while a third (35%) book one to three months in advance.
另外有四分之一的人仅提早两至四周预订短期度假，而三分之一(35%)的人提早一至三个月预订。
In case of Clearwire's implementation of WiMax, that means the about two-thirds of the channel is used for downloads, while a third is used to upload data.
在科维应用WiMax的案例中，大约三分之二的频道用于下载数据，另三分之一的频道则用于上传数据。
According to a Reader's Digest survey, one-fifth of youngsters "hardly ever" read a book while a third only pick up a book occasionally, the Daily Telegraph reports.
英国《每日电讯报》消息，《读者文摘》开展的一项调查显示，五分之一的青少年承认几乎从来不读书，三分之一则称他们只会偶尔翻一翻书。
Two of the possible sites are located in Newfoundland while a third site is located on Baffin Island in the Canadian Arctic.
其中两个发掘点位于纽芬兰，另一个位于加拿大北极地区的巴芬岛。
To take a very simple example, suppose that two zebras always hang out together, while a third is with them half the time. Is the third zebra a part of the group or not?
举个很简单的例子，假设两匹斑马经常在一起闲逛，然而有第三者有一半的时间跟他们在一起 ，那这第三者是否属于它们这一部分呢？
While a third of mothers take it pre-pregnancy, some continue to take it throughout, either as a single supplement or as part of a range of vitamins.
虽然三分之一的准妈妈们只是在怀孕前服用叶酸，但有些准妈妈在整个怀孕期内一直持续服用叶酸，或者作为唯一补剂，或者与一些维生素补剂一起服用。
While a third of mothers take it pre-pregnancy, some continue to take it throughout, either as a single supplement or as part of a range of vitamins.
虽然三分之一的准妈妈们只是在怀孕前服用叶酸，但有些准妈妈在整个怀孕期内一直持续服用叶酸，或者作为唯一补剂，或者与一些维生素补剂一起服用。
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