commencementn.开始；毕业典礼commencement or completion开工或完成commencement of fuel supply供油始点commencement of rainy season雨季开始期commencement and termination起讫commencement of fuel injection喷油提前角Commencement of the lease term租赁期开始日Commencement of Deployment Date部署开始日Commencement of AGM and Election周年会员大会及选举投票开始commencement of commercial operation正式运行commencement and termination of cover[经] (保险)责任起讫