The trip led to a re-awakening of his passion for photography.

re-awakening 是由前缀 re-（表示“再次”）和名词 awakening（觉醒、唤醒）组成的复合词。awakening 来自动词 awake（唤醒）加上名词后缀 -ing。 re-awakening 字面意思是“再次觉醒”，在这里指“重新唤起、重新激发”某种热情或兴趣。