slacking是什么意思？

Something that is slack is loose and not firmly stretched or tightly in position.

A slack period is one in which there is not much work or activity.

Someone who is slack in their work does not do it properly.

If someone is slacking, they are not working as hard as they should.

To take up the slack or pick up the slack means to do or provide something that another person or organization is no longer doing or providing.