超过10万人可能会在饮用受到污染的水后患病。More than 100,000 people could fall ill after drinking contaminated water.在黄石公园里使用雪车这一想法，为人们提供了一种对环境低影响、低污染的游览方式。The snowcoach concept in Yellowstone provides low-impact, low-pollution access.从汉福德受污...
The cities of Basel and Lausanne are also important manufacturing centres.巴塞尔和洛桑两城也是瑞士重要的制造中心.After we leave Lausanne , we directly tale the train to Geneva.在离开洛桑之后我们直接上火车就来到了日内瓦.The Universal Assembly will be held in ea...