Travelling by train has many advantages. For example, you get to enjoy the beautiful scenery that you otherwise wouldn't be able to see on a plane. Also, you get to meet your fellow travellers, whereas in a car or a plane, most people would be sleeping. Trains are also a lot faster than cars and way cheaper than planes. These are just a few reasons why travelling by train is advantageous.
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Students need exercise to stay healthy, however, they do not get enough time to play sports or stay fit with extra-curricular activities. This is harmful to their growth as being active is essential to both their mental health and physical health. Studies show that students perform better academically when they're active for at least 30 minutes a day. Therefore, schools should give students more time to be active and play sports.
放心,肯定没有语法错误~~ ^o^
参考资料：现在在加拿大上学,并且已经上了6年了