单词dead loss
un.: 固定损失；固有损耗；电机固定损失
网络: 纯损；纯损失；净损耗
无用的人（或物）；废物:
a person or thing that is not helpful or useful
电机固定损失
固有损耗
I regret buying that car. It is a dead loss and does not worth the money at all.
我后悔买了那辆车。它糟透了，根本不值那个钱。
Well, that pair of shoes is a dead loss. My feet ache wearing them.
那双鞋真糟透了。穿的时候我的脚很疼。
A young cunt is an investment; an old cunt is a dead loss.
一个小娘儿们是一项投资，而一个老娘儿们却是注定要蚀本的。
At high latitudes like ours, most small-scale ambient power production is a dead loss.
想我们这样的高纬度地区，大多数的小规模自然能源生产都是得不偿失。
Dead loss: a complete loss; a loss for which there is no compensation.
完全损失；无可补偿之损失。
The car is written off as dead loss.
这辆小汽车被登记为彻底报废。
Oh dear, I am a dead loss, aren"t I?
哎呀，我完全无能为力了！