China's commitment to greenness appears to be ebbing.是什么意思？

China's commitment to greenness appears to be ebbing.

中国的绿色承诺似乎正在退色.

commitment

n. 承诺，许诺，委任，委托，致力，献身，承担义务；

例句
...a speech in which he affirmed a commitment to lower taxes...
他作出减税承诺的演讲

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

greenness

n. 绿色，未熟，新鲜；

例句
The sweetness of the air and the greenness of the leaves daunted him.
空气甜美,树叶翠绿,却只能叫他胆怯心慌.

appears

v. 出现( appear的第三人称单数 )，出庭（作证或受审），演出，发表；

例句
The President's resignation appears to be an acknowledgment that he has lost all hope of keeping the country together...
总统的辞职似乎表明他对维护国家稳定已不抱任何希望。

be

v. 是，有，存在，做，成为，发生；aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质；

例句
The older child should be able to prepare a simple meal...
那个年纪稍大的孩子应当会做一顿简单的饭菜。

ebbing

v. （指潮水）退( ebb的现在分词 )，落，减少，衰落；

例句
Their popular support is ebbing away.
他们的人气正在衰退。