他显得很无精打采。

He appears to be ___lethargic.

吃了感冒药后，他感觉昏昏沉沉的，提不起精神。

After taking the cold medicine, he felt ___lethargic and had no energy.

这种药物可能会让人感到昏昏欲睡，行动迟缓。

This medication can make you feel ___lethargic and slow-moving.