2013年4月雅思考试：雅思作文写作范文之航空旅行
Air travel, once a privilege of the wealthy, has been gaining popularity worldwide over the last few decades. The number of people traveling by air has been growing by leaps and bounds. Some environmentalists, however, propose that air travel be limited, on the ground that it may give rise to a series of problems, including pollution and exhaustion of the world’s valuable energy resources. To my mind, it does not make much sense to restrict air travel. The most important and obvious reason is that no other vehicle can travel as fas... [ 查看全文 ]2013年4月雅思考试：雅思作文写作范文之航空旅行的相关文章
