法律义务的概念对于理解法律至关重要。
The concept of legal obligation is central to the understanding of law.
In the face of climate change, the oil and gas industry must evolve or risk becoming obsolete.
The truth is not in the words, but in the spaces between them.
我不是榜样。仅仅因为我会说唱，并不意味着我是榜样。