just like the western countries, chinese people also believe the lucky number. the number 4 is treated as the bad luck, because it sounds like dead in chinese, so if people try to avoid using the number 4, they can have more chances to be successful. if people fail, they will blame for the unlucky number.
就如西方国家，中国人也相信幸运数字。数字4就被认为是不好的数字，因为4在中文里和死亡听起来很像。因此如果人们试着去避免使用数字4，他们就能有机会成功。如果人们失败了，就会责怪数字不好。
