Space tourism has both advantages and disadvantages. Advantage is that it can make people relax, very interesting, because it is a novelty for the people. The drawback is that it exists security hidde...请你词数在多一点150词左右 谢谢请你词数在多一点150词左右 谢谢请你再仔细看看要求，适当发挥，加入自己的观点，谢谢您