slack

Pull on the rope to remove any slack so the tent stays upright.

(Chinese) 拉紧绳子，去掉松弛的部分，让帐篷保持挺立。

Business is often slack during the winter months for ice cream parlors.

(Chinese) 对于冰淇淋店来说，冬天的生意往往比较萧条。

The manager warned him not to slack off while the rest of the team was working hard.

(Chinese) 经理警告他，在团队其他成员努力工作时不要偷懒。

If you slack on your practice, you won't be ready for the piano competition.

(Chinese) 如果你在练习上懈怠，你就无法为钢琴比赛做好准备。