我一生都是一个自私的人，虽然原则上并非如此，但行动上却是。

Sometimes it's better to take a step back and focus on your mental health.

In the face of climate change, the oil and gas industry must evolve or risk becoming obsolete.

科学的美妙之处在于它让我们能够探索未知并揭开生命的奥秘。