引人入胜的（形容词）

(adjective) So interesting that it captures one's total attention..

EXAMPLE: The remarkable stories our companion told were so captivating that we lost track of time.

我们的同伴讲的精彩故事如此引人入胜，让我们忘了时间。

burning question

急迫的问题

An issue that is currently the focus of vigorous, serious discussion (and often disagreement) among many people..

EXAMPLE: Global warming has become a burning question among many members of the world-wide scientific community.

全球变暖已经成为全球科学界众多人士的一个急迫的问题。