课程中涉及了许多话题，包括旅行和餐饮，饮食，购物和金钱。
Many topics are covered in the course, including travel and hotels, food and drinks, shopping and money.
这个课程涉及很多话题，包括旅游和宾馆，食物和饮料以及购物和金钱。
The course covers many topics, including travel and hotels, food and drink, and shopping and money.
通过广告，人们知道哪些产品好，当我们去购物时，我们可以通过电视上播放的广告来了解产品的功效和价格，这样可以节约时间和金钱。
With advertisement, people can know where the products are available, when we go shopping, we can use the advertisements on TV to know the products effects and prices, it can save some time and money.
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