保持绿色

bowling green───n.草地保龄球场；玩滚木球草地

deep green───深绿色；墨绿色；暗绿

keeping down───[印刷]排小写体

keeping from───隐瞒；阻止；抑制

keeping in───隐瞒，隐藏；抑制；继续燃烧

keeping on───继续；穿着…不脱

keeping under───v.控制；压制

Keeping Singapore green and environmentally friendly did not hamper its economic expansion.───维护一个绿色环保的新加坡并没有阻碍我们的经济发展。

If you look at the color table below, you will see the result of varying the red light from 0 to 255, while keeping the green and blue light at zero.───如果你注意下面那个颜色表格的话，你就会发现当绿色和蓝色都保持0的时候红色的值从0变化到255的话依然会有很多不同的结果。

The Cornell research suggests that keeping green plants helps kids to focus more clearly, allowing their cognitive resources more rest.───那篇康乃尔大学的研究报告指出，绿色植物能让孩子更好地集中注意力，让他们的认知器官得到更充分的休息。

Study on the Fertilization for Turfgrass Keeping Green Overwintering in Shenzhen───深圳草坪越冬保绿的施肥研究

Optimal Technology Research on Keeping Green with Stem- apex of Packaged Sweet Potato───袋装甘薯茎尖护绿保质优化工艺研究

The Technical Specification and Process for Fresh Keeping Green Broad Bean───青蚕豆保鲜技术规范及工艺流程

Study on the technology of keeping green vegetable soft-packaged green and crisp───青菜软包装护绿保脆工艺的研究

Effect of Scalding Condition on Keeping Green of Dehydrated String Bean───烫漂条件对脱水四季豆护绿效果的影响