to make a copy of data to prevent loss
为了防止数据丢失而制作数据的副本 (wèile fángzhǐ shùjù liúshī ér zhìzuò shùjù de fùběn)
"It’s important to regularly back up data on your computer."
"定期在你的计算机上 备份数据 是很重要的。" (Dìngqī zài nǐ de jìsuànjī shàng **bèifèn shùjù** shì hěn zhòngyào de.)
to work very closely and effectively with someone
to review or explain something quickly
to choose one person or thing from a group for special atten...
to share personal feelings or problems with someone you trus...
to make emotional room for happiness after pain
to express gratitude or appreciation toward someone
