•A heavy lunch makes me sluggish in the afternoon.丰盛的午餐使我一下午都懒得动弹。

•Something is wrong with the car - the engine feels a bit sluggish.这辆车出了问题——引擎运转不太顺畅。

•The housing market has been very sluggish these past few years.过去这几年房地产市场一直很萧条。