1、The result are called complementary slackness conditions.
這個結(jié)果稱為互補(bǔ)、松弛性條件。

2、The manager spoke to John about his slackness in work.
經(jīng)理責(zé)備約翰工作松懈。

3、speak to sb. about his slackness in work
責(zé)備某人工作松懈

4、I think the boss is putting the screw on them because of the slackness of some of the men.
我想老板在對他們施加壓力，因為他們之中有人怠忽職守。