没有活力，生命便是存在的一个阴影而已。

Without vitality, life is a shadow of existence.

但是他的兴奋劲无法呆在这没有咖啡和大蒜味，千篇一律、没有活力的地方。

But his spirit cannot live here in this uniform and sterile place without the smell of coffee and garlic.

其它信号包括感到没有活力、或者家庭成员对你工作的抱怨表示沮丧。

Other signs include spending your days off feeling lifeless or your family members showing frustration over your constant obsessing about work.

如同养育箱的玻璃墙一样没有活力，此时，杰拉德想知道，即使是行家，如何来辨别这东西是死了还是活着。

It was no more animate than the glass walls of the terrarium, and Gerard wondered how anyone, even an expert, could tell if the thing was alive or dead.

缺乏睡眠会让人在白天因为太累而没有活力，睡眠的缺乏同样也会影响到激素的分泌和身体的代谢而导致体重增加。

Lack of sleep may make people too tired to be active during the day; sleep deprivation also affects hormones and metabolism in a way that might promote weight gain.