student:i'm sorry i couldn't do the homework teacher:well why not student:its just the buoyancy is all messed up i couldn't do it
when there's something you can't do and you need an excuse you say that it's just the buoyancy is all messed up
"student:i'm sorry i couldn't do the homework teacher:well why not student:its just the buoyancy is all messed up i couldn't do it" What is the definition of "buoyancy"?