unable

US /ʌnˈeɪ.bəl/
UK /ʌnˈeɪ.bəl/
"unable" picture
1.

不能, 無法

not having the power, skill, means, or opportunity to do something

:
I am unable to attend the meeting tomorrow.
我明天無法參加會議。
She was unable to speak after the shock.
她受到驚嚇後無法說話。