亲自为客人引路，单是指出方向并不足够。

Escort guests rather than pointing out directions.

youdao

理论所以有价值，就在于它能给实践指出方向。

Theory is valuable in that it can provide a direction for practice.

youdao

理论之所以有价值，是因为它能为实践指出方向。

Theory is valuable in that it can provide a direction fro practice.

youdao

But they represent for us a direction That the research lab I direct is trying to hid in.

但他们给我们指出了一个方向,我所在的研究实验室就朝着这个方向努力。

麻省理工公开课 - 媒体、教育、市场课程节选