There has been a growing awareness of the need for countries to get together to co-ordinate their policies.
人们越来越意识到，各国有必要联合起来，协调各自的政策。
2
Digital technology also makes it easier for people to co-ordinate their activities without resorting to hierarchy.
数字技术也使人们更容易协调他们的活动，而不用诉诸等级制度。
3
It might also be hard for airlines to co-ordinate the departure times and destinations of passenger aircraft in a way that would allow them to gain from formation flight.