求翻译：2007年暑假，我和同学一起骑自行车，从广州出发，历经21天，到达昆明。途中我们互相帮助和支持，克服种种困难，最终到达目的地。是什么意思？

In 2007 summer, I bike with my classmates, from Guangzhou, after 21 days, arrived in Kunming. The way we help and support each other to overcome various difficulties, the final destination.

Summer 2007, I and my classmates riding together, depart from Guangzhou, after 21 days, arrived at Kunming. We help each other and support on their way to overcome the difficulties and eventually reach the destination.

In 2007 the summer vacation, I and schoolmate ride the bicycle together, embarks from Guangzhou, has been through repeatedly 21 day, arrives Kunming.We mutually help and the support on the way, overcomes all sorts of difficulties, finally arrives the destination.

正在翻译，请等待...

In 2007 summer, I bike with my classmates, from Guangzhou, after 21 days, arrived in Kunming. The way we help and support each other to overcome various difficulties, the final destination.