trading group的用法和样例：
例句
- Last month, two American trade groups announced measures designed to improve the living conditions and treatment of farm animals.
上个月，两个美国贸易团体宣布了旨在提高农场动物生活条件和待遇的措施。 - A study commissioned by a trade group, the National Association of Software and Service Companies, or Nasscom, found only one in four engineering graduates to be employable.
由贸易团体国际软件和服务联合公司组织的一项研究发现，只有四分之一的工程师毕业生能找到工作。
