Every town in the United States has a post office. Some are very small, and you may also find them in the corner of a shop. Others are larger buildings. They are open on weekdays and on Saturday mornings. ‘From Monday to Friday, they are usually open from 8:30 am t0 16: 30 pm.
If you know how much the postage(邮费)is for your letter, you can buy stamps at any window. In some post offices, you can buy stamps from machines. Stamps are sold at different prices, from l cent to many dollars. If you are not sure how much the postage is for your letter, you may ask the man or the woman in the post office for help. He or she will give you the stamps you need. If you are sending your letter far away, you should use airmail envelopes. Remember that postage will be more expensive for a letter to be sent outside the country.
At a post office, you can also buy postcards. A postcard is cheaper than a letter. Usually the postage for a postcard is about half that of a letter. The postcards that you buy at a post office do not have pictures-And they are not to be sent outside the country. Sending letters is all easy and cheap way to keep in touch with people in many different countries.