The transformation of the coal industry must rely on technological leadership, and green development is the only way forward.
释义:无论是贤能还是平庸的人,一旦进入朝廷就容易遭到嫉妒;无论是美丽还是平常的女子,一旦进入后宫就容易遭受妒忌。
耳朵是负责听的,听了之后再加以审察,这叫做聪明。