中文版：

一元能干什么？在当今社会，一元钱似乎显得微不足道。但在过去，一元钱曾经是人们生活中的重要货币。今天，让我们来看看一元钱在现代社会中仍然能够做些什么。

首先，一元钱可以用来购买一些小物品。例如，一些简单的文具、小玩具、饰品等等。这些小物品虽然不贵，但是它们能够满足人们的一些基本需求，例如学习、娱乐等等。

其次，一元钱可以用来乘坐公共交通工具。在一些城市，公交车和地铁的价格往往是一元钱或者两元钱。如果你需要从一个地方到另一个地方，一元钱就能让你乘坐公共交通工具到达目的地。

此外，一元钱还可以用来打电话或者发短信。在一些地区，移动电话的通话费和短信费都是一元钱一次。如果你需要联系别人或者发送一些简单的信息，一元钱就能让你完成这个任务。

最后，一元钱还可以用来捐赠或者购买一些慈善机构的物品。一些慈善机构会出售一些小物品或者食品，价格往往是一元钱或者几元钱。如果你愿意捐赠一些一元钱，你就可以帮助那些需要帮助的人。

总之，虽然一元钱在现代社会中显得微不足道，但是它仍然能够满足人们的一些基本需求。它可以用来购买小物品、乘坐公共交通工具、联系别人或者捐赠给慈善机构。

英文版：

What can a yuan do? In today's society, a yuan seems insignificant. But in the past, a yuan was an important currency in people's lives. Today, let's take a look at what a yuan can still do in modern society.

Firstly, a yuan can be used to buy some small items. For example, some simple stationery, small toys, accessories and so on. Although these small items are not expensive, they can meet people's basic needs, such as studying, entertainment and so on.

Secondly, a yuan can be used to take public transportation. In some cities, bus and subway tickets are often one or two yuan. If you need to go from one place to another, a yuan can allow you to take public transportation to reach your destination.

In addition, a yuan can also be used to make phone calls or send text messages. In some areas, mobile phone calls and text messages are one yuan each time. If you need to contact someone or send some simple messages, a yuan can allow you to complete this task.

Finally, a yuan can also be used to donate or buy some items from charitable organizations. Some charitable organizations sell some small items or food, which are often one or a few yuan each. If you are willing to donate one yuan, you can help those in need.

In conclusion, although a yuan seems insignificant in modern society, it can still meet people's basic needs. It can be used to buy small items, take public transportation, contact others, or donate to charitable organizations.