tā / huā / le / zhěng tiān / shí jiān / zhěng lǐ / zī liào / què / yīn wèi / sī lù / cuò wù / láo ér wú gōng

他花了整天时间整理资料，却因为思路错误劳而无功。

He spent the whole day organizing materials, but his efforts were in vain due to a wrong approach.