laborious
🇺🇸
/ləˈbɔːriəs/
🇬🇧
/ləˈbɔːriəs/
adjective
R
needing a lot of time and hard work
Sorting through all the papers was a laborious task that took many hours.
整理所有文件是一项需要大量时间和艰苦工作的任务，花费了许多小时。
translation
费力的