这里有一些文件,你整理一下。看看哪些是有用的,哪些写了“作废”。
zhèlǐ yǒuyīxiē wénjiàn ,nǐ zhěnglǐ yīxià 。kàn kan nǎxiē shì yǒuyòngde ,nǎxiē xiě le “zuòfèi ”。
Here are some documents. Please put them in order. Look to see which of them are useful and which ones have ”null and void“ written on them.