0 the state of being slower and less active than usual -- 松弛；萧条
Low sales figures were partly because of normal mid-summer slackness in/of demand. 销量不高一部分是由于仲夏时节正常的需求不旺造成的。
The inspector criticized the slackness and incompetence of the staff. 巡察员批评了员工的懒散和无能。
1 the state of not being tight -- 松弛；松散
