shiftily
1. he looked at his new customer shiftily.
他诡诈地看着他的新顾客。
2. The pressure of energy supplying is comparatively heavy because of the shiftily development of economy, which is related the stage of the development of economy and society.
当前我国经济发展迅速,能源供应的压力较大,这跟我国当前经济和社会发展所处的阶段不无关系。