1. 遗失；丧失；失去；减少
    Loss is the fact of no longer having something or having less of it than before.

    e.g. ...loss of sight...
           失明
    e.g. The loss of income for the government is about $250 million a month.
           政府收入每月大概减少2.5亿美元。

2. （人命的）丧失
    Loss of life occurs when people die.

    e.g. ...a terrible loss of human life...
           伤亡惨重
    e.g. The allies suffered less than 20 casualties while enemy losses were said to be high.
           盟军伤亡人数不到20，而敌军则据说人员损失惨重。

3. （亲人或朋友的）丧故，亡故，逝世
    The loss of a relative or friend is their death.

    e.g. They took the time to talk about the loss of Thomas and how their grief was affecting them.
           他们慢慢谈到了托马斯的死和悲痛给他们带来的影响。
    e.g. ...the loss of his mother.
           他母亲的亡故

4. 亏损；亏蚀
    If a business makes a loss, it earns less than it spends.

    e.g. In 1986 Rover made a loss of nine hundred million pounds...
           1986年，路虎亏损9亿英镑。
    e.g. The company said it will stop producing fertilizer in 1990 because of continued losses.
           由于持续亏损，该公司说它将在1990年停止生产化肥。

5. 失落；惆怅
    Loss is the feeling of sadness you experience when someone or something you like is taken away from you.

    e.g. Talk to others about your feelings of loss and grief...
           把自己的失落和悲伤向他人倾诉。
    e.g. He always woke with a sense of deep sorrow and depressing loss.
           他醒来时总是满怀哀愁，抑郁惆怅。

6. 损失；不幸
    A loss is the disadvantage you suffer when a valuable and useful person or thing leaves or is taken away.

    e.g. She said his death was a great loss to herself.
           她说他的死对自己来说是巨大的损失。

7. （热量、血液、液体等的）流失，散失，减少
    The loss of something such as heat, blood, or fluid is the gradual reduction of it or of its level in a system or in someone's body.

    e.g. ...blood loss.
           失血
    e.g. ...weight loss.
           瘦身

8. （经营）亏本地，赔钱地
    If a business produces something at a loss, they sell it at a price which is less than it cost them to produce it or buy it.

    e.g. New fashion designs have to be sold off at a loss if sales are poor.
           新款时装遇上销路不畅就要蚀本卖出。

9. 茫然不知所措；不知如何是好
    If you say that you are at a loss, you mean that you do not know what to do in a particular situation.

    e.g. I was at a loss for what to do next...
           下一步该怎么做，我完全没谱。
    e.g. The government is at a loss to know how to tackle the violence.
           对于如何应对暴力问题，政府现在一筹莫展。

10. 及时止损；趁早撒手
    If you cut your losses, you stop doing what you were doing in order to prevent the bad situation that you are in becoming worse.

loss什么意思

    e.g. Directors are right to cut their losses, admit they chose the wrong man and make a change.
           董事们当断则断，承认自己选错了人，并且作了人员变更，这样做是正确的。

11. 无用的人（或物）
      If you say that someone or something is a dead loss, you have a low opinion of them because you think they are completely useless or unsuccessful.

loss的意思

      e.g. I'd had no experience of organizing anything of that sort. I think I was largely a dead loss.
             筹办那类活动我毫无经验。我看我基本是个废物。