如果你常年背井离乡漂泊在外，思乡便是郁结在内心深处一种无法排解的、不可言喻的消沉、悲凉的情绪。不仅仅是思念父母或哪个地方，而是对生于斯长于斯的那片故土和文化氛围的深深的眷恋，你渴望回去又不能如愿的遗憾和惆怅。。
If you have long been drifting away from your hometown, homesickness would be an unresolvable, ineffable, depressed and sad mood stagnating deep in your heart. It is not just missing your parents or a certain place, but the heartful longing for the land and culture where you were born and bred, and the regret and melancholy caused by the unfulfillable desire to go back.
当两句话翻译做了，读起来Chinglish味道很足。请大家指点修正。
