由于绳子太松，我们无法安全地固定帐篷。

The ___slackness of the rope made it unsafe to secure the tent.

老师批评了他作业中的懈怠。

The teacher criticized the ___slackness in his homework.

在建筑行业的淡季，很多工人都在找兼职。

During the ___slack of the construction season, many workers look for part-time jobs.