副词的用法the village was now only fifteen miles away.

副词的用法the village was now only fifteen miles away.
the village was now only fifteen miles away.
Our next obstacle was a shallow pool of water about half a mile across.
away,across,在这些句中,它们这是副词的什么用法

away表示距离的远近,across表示横穿,比如 go across the road,横穿马路,across这里说明了这个浅水池的宽度,大概半英里,ps:一英里=1609.344
再问： 我是说语法解释
再答： away adv.（副词） 1.From a particular thing or place: 远离：远离某件特指的事情或地点： ran away from the lion; sent the children away to boarding school. 远离狮子身边；送孩子去寄宿学校就读 2.At or to a distance in space or time: 在或到空间或时间上的一段距离： We live a block away from the park. 我们住的街区远离公园 3.At or by a considerable interval: 相差一个相当大的间隔： away back in the 17th century; away off on the horizon. 回到远离的17世纪；远离地平线: 遥远的：遥远的，如在空间或时间上： The city is miles away. The game was still a week away. 这个城市在几英里以外。离比赛还有一星期 across的用法： 用作介词或副词，注意以下用法： (1) 表示动态意义，意为“横过”、“到……的另一边”。如： I cam swim across the river in 10 minutes. 我可以在十分钟之内游过河去。(介词用法) Can you swim across? 你能游过去吗? (副词用法) (2) 表示静态意义，意为“在……的另一边”。如： My house is just across the street. 我家就在街道对面。(介词用法) We leave Dover at ten and we should be across in France by midnight. 我们十点钟离开多佛，午夜时应能抵达法国那边。(副词用法) 有可与介词 from 连用，表示“从……的另一边”。如： He shouted to me from across the room. 他从房间的另一边向我喊。 (3) 表示“交叉”(介词用法) 或“从一边到另一边的宽度”(副词用法)。如： He sat there with his arms across his chest. 他坐在那儿，两臂交叉放在胸前。(介词用法) The river is half a mile across. 这条河半英里宽。(副词用法) 2. 不要将 across 误用作动词。如： 不能说：The river is too deep and we can’t across. 可改为：The river is too deep and we can’t cross. 河水太深，我们过不了。 3. 用于 come [run] across, 意为“偶然遇见”、“意外发现”(不用于被动式)。如： Where did you come [run] across her? 你在那儿碰到她的? I’ve just come across a beautiful poem in this book. 我在这本书里偶然发现