丢失

为wèi免miǎn丢失diūshī，你nǐ应该yīnggāi把bǎ信件xìnjiàn挂号guàhào。

To avoid losing it, you should register the letter.

我wǒ的de钥匙yàoshi就是jiùshì在zài这zhè附近fùjìn丢失diūshī的de。

I lost my key about here.

我wǒ会huì找到zhǎodào你nǐ丢失diūshī的de戒指jièzhi。

I will find you your lost ring.

检点jiǎndiǎn一下yīxià工具gōngjù，看kàn有无yǒuwú丢失diūshī。

Check the tools and see if anything is missing.