1. 放松缰绳; 漫不经心地管理：keep one's hands off 不要管, 不要碰 | keep a slack hand 放松缰绳; 漫不经心地管理 | keep a tight hand on sb. 紧紧掌握; 控制; 管理; 保留(以备将来之用)
2. 懈怠：keep a shot 做店主 | keep a slack hand 懈怠 | keep a stiff upper lip 坚定不移
1. The way I treated my homework is just preciseness and never keep a slack hand.
在学术上我经常能与老师和同学进行交流和讨论。
2. Yutang is able to gain the achievement today. Thanks for the support and cooperation of people form all walks of life. We have skilled technicians and outstanding servicer. In the competitive furniture industry, we can`t keep a slack hand.
The General Remarks 玉堂能够有今天的成就，感谢社会各方人士的支持与合作，我们有一批熟练的技术工人和想顾客之所想的服务人员；在家具行业竞争激烈的今天，我们不敢懈怠；我们关注人们的健康生活，设计生产出更多高品质、减压型、环保型的现代玻璃办公家具，更好地消除人们在办公桌上的压力，美化人们的工作和生活空间。
3. But the life is just alike of the sea, it never lets us keep a slack hand. Underneath the calm surface there`s some riffles. After the calmness, there comes the scenery and for the people, they always sense the danger and fear at the bump of the wave. When they reminds of their ignorance they need to fight back by the light of nature.
可生活如海啊，是不容让人懈怠的，平静的水面下暗藏的是急流，平静过去，又将是风景，而人往往也是在风浪的颠簸中才意识到危险感到恐惧，才想起自己的疏忽，才本能地需要抗拒。
4. But the life is just alike of the sea, it never lets us keep a slack hand. Underneath the calm su***ce there`s some riffles. After the calmness, there comes the scenery and for the people, they always sense the danger and fear at the bump of the wave. When they reminds of their ignorance they need to fight back by the light of nature.
可生活如海啊，是不容让人懈怠的，平静的水面下暗藏的是急流，平静过去，又将是风景，而人往往也是在风浪的颠簸中才意识到危险感到恐惧，才想起自己的疏忽，才本能地需要抗拒。