From the bar chart given above, we can observe that the number of people traveling abroad experienced some changes in China during the past several years. From 1999 to 2000, the number of Chinese people traveling abroad increased rapidly from 7.5 million to 10 million, and then to 12.1 million in 2001. The bar chart reveals that people in mounting numbers are going to travel abroad. What exactly contribute to this phenomenon? Reasons can be listed as follows: for one thing, the authorities have issued some preferential policies to promote the development of the overseas tourism industry, which encourages a sudden emergence of travel agencies that can provide customers with convenient overseas tourism services. Additionally, with the improvement of financial status and purchasing power, a considerable number of Chinese people can afford the once-deemed-expensive traveling expenses. Last but not least, as there exists huge difference in cultures, customs and landscapes between China and overseas countries, quite a few people hold that overseas traveling is not only a perfect way to relax oneself, but also a good chance to enrich their knowledge and expand their horizons. By observing the trend in the past, we may forecast that the growth tendency will continue. However,overseas tourism is also a highly variable industry which is vulnerable to seasons and climates, international political situation,fluctuations in exchange. (226 words) 参考译文: 如图所示,我们可以看到中国出国旅游的人数在过去几年经历了一些变化。从1999年到2000年,出国旅游的人数从750万快速地增长到1000万,然后又快速地增长到2001年的1210万。 这幅柱状图揭示了越来越多的人去海外旅游。到底是什么导致了这个现象?理由可以罗列如下:政府发布了一些优惠政策来推进境外旅游行业的发展,这促使很多旅行社一夜之间就冒出来了,这些旅行社为消费者提供了便利的境外旅游服务。其次,随着财务状况和购买力的提升,相当多的中国人可以承当曾经被视为昂贵的出国旅游费用。最后,因为中国和海外国家在文化、习俗和风景上存在很大的差异,相当多的人都认为海外旅游不仅仅是放松自己的完美方式,也是一个丰富知识和拓宽视野的好机会。 通过观察过去的趋势,我们也许可以预测这种增长的趋势会继续下去。然而,境外旅游也是一个高度变化的行业,它很容易受到季节和气候、国际政治局势以及汇率波动的影响。