Many people are superstitious(迷信的) about numbers. They think that there are lucky numbers and 1 numbers.
The number 13 is often considered(被认为) unlucky. In 2 parts of the world, buildings don't have the 3 floor. People go from the twelfth to the fourteenth 4. Some door numbers are like that 5. In Japan, the number 4 is considered unlucky because in Japan the word "four" is pronounced the same as the word "death". The Japanese 6 give gifts of four knives, four napkins or four of anything.
7 are lucky numbers? 7 is a lucky number in many places, and 8 is considered a lucky number both in Japan and China. In China, businesses often open 8 August 8, and many couples get married at 8:08 on August 8. Some people 9 lucky numbers very deeply. They would like to get a telephone number with "8" or "6" in it though it 10 them much more money. They think that the lucky numbers can really bring them good luck, and, at least no evidence(证据) says they can not.
