A: How's Bob coming along on his dissertation plan?
B:He's really been dragging his feet.
A: Why is he behaving like this?
B: He doesn't like it very much.
drag one’s feet
exp. To move slowly and reluctantly because one does not want to do something. （拖拖拉拉，行动迟缓）
e.g. We can't be late for the dentist, so quit dragging your feet and get in the car!
e.g. The children wanted to watch TV, and dragged their feet when their mother told them to go to bed.
Tom dragged his feet when he was told to turn off the TV and go to bed.
e.g. You should be ready to solve any problem that may come along.
e.g. If your car breaks down, just sit tight and wait for the police to come along.
e.g. Jim whispered and said he was feeling powerful sick and told me to come along.
e.g. "Come along with me," said Mike. "I can introduce you to something dead swell."
How is someone coming along on something?
How is something coming along?