他要求我出示购买凭证。

Tā yāoqiú wǒ chūshì gòumǎi píngzhèng.

He asked me to show the purchase receipt.

申请签证的时候要出示很多证明文件。

Shēnqǐng qiānzhèng de shíhou yào chūshì hěn duō zhèngmíng wénjiàn.

When applying for a visa, you have to provide a lot of supporting documents.

乘客要出示火车票给职员检查。

Chéngkè yào chūshì huǒchēpiào gěi zhíyuán jiǎnchá.

Passengers must show their train tickets for staff to check.