It is a good phrase but it is very much tied to marketing and people who speak with marketing phrases
If there is a new idea happening in shops - say, knee-length socks - then you can draw a diagram to show that some shops are making the most of that trend whereas others are lagging behind. The diagram may look like a curve that rises from the left-hand side
Thanks for your help. I thought I heard once in a class I took, which the teacher said some of them are behind the curve. If I heard it right. English is not easy, there's Globish I read from Newsweek. English stripped down to its very basic meaning so it's understandable. Basically I think English is very hard, with words evolving every day.
When one discovers that English is difficult, "with words evolving every day", he has made an giant leap forward in truly understanding the language. You could not be more correct. One of the difficulties in learning English is not only do you have to learn the gramatical ground rules, but you also have to accept that it is a language that is alive with change. In fact,