At a rate of knots: o que isso significa?

Imagine you have a party to attend tonight but first you need to get all your homework done. That's the condition your mother imposed. You want to go to that party very much. All your friends are going to be there. So you grab all your books and pens and do your homework at a rate of knots.

When you do something at a rate of knots, you do it very quickly. So imagine you are late for work and you haven't even gotten out of bed. When you look at the clock and see how late you are, you jump out of bed and get dressed at a rate of knots. That's all for today. Take care!