Could you tell me the meaning of these words ?
- Shop worker : what does this job mean?
- Professor Hill gave me "extra credit" for a good story. The words "Extra Credit" in this sentennce mean are what?
- I ate 10 pieces of chocolate today. I have no "will power". The words "Will Power" in this sentence mean are what?
Thank you for your help
 a person who works in a manufacturing or repair shop.
 additional points towards the grade
 no control; no power to will myself to stop eating chocolate.