Chira [地名] [加纳、肯尼亚] 奇拉;[例句]Chira's Admission to WTO and the Reform of Commidity Service Trade Legal System in China.加入WTO与我国商品服务贸易法律制度的革新

应该是chairman吧,

1.主席;议长;委员长;董事长

2.(大学的)系主任