他们沿着结冰的河流航行了数百英里。
然而冰路不仅仅是结冰的河流。
在远足回来的路上，一条结冰的河流突然完全解冻。
Upon the return hike, a frozen river had suddenly completely thawed.
加拿大在北极圈以内的地方，冬季是最好的驾驶季节。每年的冬天，结冰的河流和湖泊上建起了冰路，连通着往时只能乘飞机才能到达的地区。
In Canada's arctic, winter is the best driving season because every winter, ice roads are built over frozen rivers and lakes, connecting communities that are usually accessible only by air.
一些气候科学家说，为增加流向结冰地区的冷水流量进行的俄罗斯河流改道，也可以用来减缓气候变暖。
Re-routing Russian rivers to increase cold water flow to ice-forming areas could also be used to slow down warming, say some climate scientists.
这在一定程度上解释了为什么关于游泳的书最近变得如此受欢迎，在书中，人们在反思自己生活的同时，应对结冰的湖泊，在河流中赛跑，征服海洋。
It goes some way towards explaining why books about swimming, in which people tackle icy lakes, race in rivers and overcome oceans while reflecting on their lives, have recently become so popular.
如果赶上雨雪发生在河流最狭窄的地段，或者当时正值水浅，河面就会结冰。
When this happens,if the river is at its narrowest or the creek shallow there is a freeze which hardens the water to ice.
如果赶上雨雪发生在河流最狭窄的地段，或者当时正值水浅，河面就会结冰。
When this happens, if the river is at its narrowest or the creek shallow there is a freeze which hardens the water to ice.
高纬度寒冷地区的河流在冬季结冰是一种普遍现象。
The phenomenon that rivers freeze in high latitude and cold regions is universal.
在8,200年前的那次事件中，欧洲和其他地区的严冬导致冰川延伸，河流结冰和农业减产。
During the 8,200 event severe winters in Europe and some other areas caused glaciers to advance, rivers to freeze, and agricultural lands to be less productive.
一项新的研究表明北美，亚洲和欧洲的河流和湖泊比多年前结冰期短。
A new study says that lakes and rivers in North America, Asiaand Europe are freezing later and melting earlier than they did many years ago.
另外一个原因是有不少淡水河流入波罗的海，造成该海的含盐度较低，冬季容易结冰。
The water of the Baltic is not very salty because many fresh rivers flow into it, so it freezes more easily. Many of its ports are blocked by ice in winter.
另外一个原因是有不少淡水河流入波罗的海，造成该海的含盐度较低，冬季容易结冰。
The water of the Baltic is not very salty because many fresh rivers flow into it, so it freezes more easily. Many of its ports are blocked by ice in winter.
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