1. This view is now being questioned by more and more people.

　　这一观点正受到越来越多人的质疑。

　　2. Although many people claim that, along with the rapidly economic development, the number of people who use bicycle are decreasing and bicycle is bound to die out. The information Ive collected over the recent years leads me to believe that bicycle will continue to play extremely important roles in modern society.

　　尽管许多人认为随着经济的高速发展，用自行车的人数会减少，自行车可能会消亡， 然而，这几年我收集的一些信息让我相信自行车仍然会继续在现代社会发挥极其重要的作用。

　　3. Environmental experts point out that increasing pollution not only causes serious problems such as global warming but also could threaten to end human life on our planet.

　　环境学家指出：持续增加的污染不仅会导致像全球变暖这样严重的问题，而且还将威胁到人类在这个星球的生存。

　　4. In view of such serious situation, environmental tools of transportation like bicycle are more important than any time before.

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