1、trade fair:a event at which many different companies show and sell their products.
2、organized：invoving large number of people who work together to do sth in a way that has carefully planned.
3、bodyguard：a person or a group of people employed to protect sb;
4、include：to make sb/sth part of sth / if one thing include another,it has the second thing as one of its parts.
够标准了吧 :D