6 sentences

1. 请保留一份合同的副本。

   qǐng bǎo​liú yī fèn hé​tong de fù​běn.

   Please keep a copy of the contract.

   Source: Dong Chinese Dictionary

2. 我们今晚组队去刷副本。

   wǒ​men jīn​wǎn zǔ​duì qù shuā fù​běn.

   We are teaming up to run a dungeon tonight.

   Source: Dong Chinese Dictionary

3. 你在首尔收到了一份副本。

   nǐ zài Shǒu'ěr shōu​dào le yī fèn fù​běn.

   You received a copy in Seoul.

   Source: OpenSubtitles

4. 你有副本吗？

   nǐ yǒu fù​běn ma?

   Do you have a copy?

   Source: OpenSubtitles

5. 几个玩家决定组队挑战高级副本。

   jǐ gè wán​jiā jué​dìng zǔ​duì tiǎo​zhàn gāo​jí fù​běn.

   Several players decided to team up to challenge a high-level dungeon.

   Source: Dong Chinese Dictionary

6. 他为了升级，在电脑前刷了一整晚副本。

   tā wèi​le shēng​jí, zài diàn​nǎo qián shuā le yī zhěng wǎn fù​běn.

   He spent the whole night grinding dungeons in front of the computer to level up.

   Source: Dong Chinese Dictionary