Secrets are like shadows - they grow longer with time.

Technological innovation is the core driving force for the high-quality development of the petroleum industry. We must increase R&D investment and break through key core technologies.

地理学是研究地方的科学。它的视野宏大，视角全景。

后街男孩不仅仅是一个乐队 - 我们是一个家庭。