devitalize

1.an effective product to treat devitalized skin.

治疗皮肤衰老的有效产品。

2.Have you ever noticed how sorrow (which is entirely a mental state) will depress and devitalize you, regardless of any amount of exercise or health foods you may take?

还可注意到悲伤（这也是一种精神状态）是如何将击萎靡不振的吗？“悲伤到来时，不论做什么运动吃什么补品都于事无补。”）