Your pages will be easier to keep track of that way, and, if you have to clip a paragraph to place it elsewhere, you will not lose any writing on the other side.
这样做能让你的页面更加一目了然,并且,如果你必须剪切一个段落并把它放在其他位置上,另一侧的文字也不会丢失。
This is a sore point with some health experts, who say that America needs a better way to keep track of its animals.
这也是一件令许多健康专家伤心的事,他们认为美国需要一种更好的方式去饲养他们的动物。
The US Army realized they had to secure USB drives, find a way to keep track of the devices, and ensure that the information could not be accessed by unauthorized personnel.
美军这才意识到他们得保护usb硬盘的数据安全,找出能够跟踪这些设备的方法,并且确保重要信息不被未经授权的员工访问。
So you need hundreds of millions of doses, at least, and you need a way to distribute that around the world, and you need a way to keep track of who got sick and who didn't after they got vaccinated.
至少需要上亿支的剂量,还得有办法将疫苗运送到世界各地,你还要一种方法进行跟踪,在接种疫苗之后谁得病了和谁没得病
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