adj.无生命的；无趣味的；死气沉沉的
Without health, life is not life, life is lifeless. 如无健康的身体，生活就不成为生活，人生也毫无生气。
I had enough of this kind of lifeless life. 我受够了这种枯燥的生活。
It was a lifeless performance. 那是一场死气沉沉的演出。
adv.无生命地；死一般地
