我开始定期查阅网上订票网站，看看有没有比较划算的。
I started to check regularly online booking websites to see if there are any good deals.
创立一个品牌需耗费数年时间和大量资金，购买现成品牌通常比较划算。
Building a brand can take years and POTS of money; buying an established one is often cheaper.
我告诉系统我想去哪，然后系统给我各种票价的选择方案：今天，我坐火车比较划算。
I tell your system where I need to go and you give me choices at various price points: Today, I can take the train for less.
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