onerous

US /ˈɑː.nɚ.əs/
UK /ˈɑː.nɚ.əs/
"onerous" picture
1.

繁重, 麻烦, 费力的

involving a great deal of effort, trouble, or difficulty

:
The new regulations impose onerous burdens on small businesses.
新规定给小企业带来了繁重的负担。
He found the task to be quite onerous.
他觉得这项任务相当繁重