这两句话都对.This book is dedicated to my beloved friends listening to my moment of life.这句中的listening to my moment of life是现在分词做伴随状语This book is dedicated to my beloved friends who list...中文意思是谨以此书献给所有聆听我生活的挚爱们，哪一个更好些？麻烦了，谢谢第一种更好，定语从句会显得生硬、累赘。伴随状语就高档大气上档次多了。