lose

遗失；丢失

lose one's keys/job/weight/head

失去/遗失钥匙/工作/体重/理智

I lost my keys/job.

我丢了我的钥匙/工作

missing

找不到的

My pen is missing.

我的钢笔不见了。

I can't find...

我找不到...

I can't find my pen.

我找不到我的钢笔了。

Conversation:

A: Hello, John. You look very upset. What's the matter with you?

你好，约翰，你看起来很沮丧，怎么啦？

B: There is something wrong with my computer. I lost the powerpoint presentation that we have been preparing for one month.

我的电脑出问题了，我丢失了那个我们已经准备了一个月的演示文稿。

A: You lost everything! No! It is very important. We need it for tomorrow morning. Do you have it on your USB drive?

你全部弄丢了？不！它很重要，我们明天早上还要用呢，你的U盘上有吗？

B: My USB drive is missing. Could you give me some advice?

我的U盘也丢了，你能给我提点建议吗？

A: You're so careless. But don't you save it on the computer?

你真是太不小心了，但是在你的电脑上没有保存吗？

B: No. it took up too much space, so I Deleted it. But I forgot to check the recycling bin. It might still be there. Wait a moment. Let me check.

没有，它太占内存了，所以我把他都删除了。不过忘记查看回收站了，或许在那里，稍等，我检查一下。

A: Is it there?

在那里吗？

B: No. I don't know what to do. I shouldn't have deleted it. Is there anything else you can do?

没有。真不知道如何是好，我真不应该把她删除，你还有没有什么别的办法？

A: The only way is to find your USB drive. How about flipping through your trash can to see if you accidentally throw it away?

唯一的办法是找到你的U盘，翻翻你的垃圾桶，或许你不小心把它扔了。

B: I wouldn't do such a stupid thing.

我不会做这么愚蠢的事。

A: You can go to the lost and found office in the company. Perhaps someone picked up your USB drive.

你可以到公司的失物招领处看看，也许有人捡到了你的U盘。

B: Good idea. Thank you very much.

好主意，非常感谢。