We have a class in Chicago asking for civil engineers to teach them how to build a bridge. In Idaho, a class is asking for a scientist to help them build a working river delta inside their classroom.

希德里说：“我们在芝加哥开了一个班，由土木工程师教授他们建造桥梁的知识，在爱达荷州，有个班级请求科学家帮助他们建立一个可在教室内运转的河流三角洲”。

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The teacher told the class the story of a man who swam a river three times before breakfast.

老师给同学们讲了一个小故事，说有一个人早饭前要在河里游泳，横渡三趟。

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Harvard University (Harvard University) is the longest in U.S. history one of the first-class academic institution, is located in Cambridge, Massachusetts, and at Boston and across the Charles River.

哈佛大学(Harvard University)是美国历史最悠久的一流学府之一，坐落于马萨诸塞州剑桥，隔查尔斯河与波士顿相望。

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But the main attraction at Clayoquot is the wilderness itself, and a slate of varied activities include horseback riding, river and ocean kayaking, whale watching, grizzly bear watching, hiking, mountain biking and world-class river, ocean, and lake fishing - some guests come primarily for the angling.

FORBES: Clayoquot Wilderness Resort, Vancouver Island, BC, Canada - Larry Olmsted The Great Life

Minsheng has drawn up plans for a new class of river boat that more than doubles the current size of 800-1, 000 tonnes, whilst raising the speed from 18kph to 22kph.

ECONOMIST: The benign ghost of Lu Zoufu

Jackson Hole Whitewater organises half day excursions on the class III Snake River with some big rapids through the limestone cliffs of Snake River Canyon.

BBC: The best of the West in Jackson Hole