officiate
英 [ə'fɪʃɪeɪt]
美[o'fɪʃɪet]
	    - vt. 主持(仪式);行使(职务);担任裁判
 - vi. 执行职务;主持宗教仪式;当体育比赛裁判
 
英英释意
- 1. act in an official capacity in a ceremony or religious ritual, such as a wedding;
 - "Who officiated at your wedding?"
 
- 2. perform duties attached to a particular office or place or function;
 - "His wife officiated as his private secretary"
 
