登机前要出示旅游证件。

Dēngjī qián yào chūshì lǚyóu zhèngjiàn.

You need to present your travel documents before boarding.

在入境时，请随身携带好您的证件。

Zài rùjìng shí, qǐng suíshēn xiédài hǎo nín de zhèngjiàn.

Please carry your identification documents with you when entering the country.

在机场办理登机手续时，请出示您的登机证件。

Zài jīchǎng bànlǐ dēngjī shǒuxù shí, qǐng chūshì nín de dēngjī zhèngjiàn.

When checking in at the airport, please present your boarding documents.