为避免数据丢失,研究团队每天都会在离线服务器上保存副本。Wèi bìmiǎn shùjù diūshī, yánjiū tuánduì měitiān dōu huì zài líxiàn fúwùqì shàng bǎocún fùběn.To avoid data loss, the research team saves a copy on an offline server every day.
请把合同的副本交给财务部门保存。Qǐng bǎ hétong de fùběn jiāo gěi cáiwù bùmén bǎocún.Please hand a copy of the contract to the finance department for safekeeping.
原件你自己留着,我只要一份副本就行。Yuánjiàn nǐ zìjǐ liúzhe, wǒ zhǐ yào yí fèn fùběn jiù xíng.Keep the original yourself; a copy is all I need.