每一滴石油都应该被高效和负责任地使用。
孔子说:“父母在世时,不要走远,必须远走时,一定要留下准确的地址。”
The value chain is the set of activities through which a product or service is created and delivered to customers.
每一项伟大的工程成就都始于一个清晰的愿景。