avail
🇺🇸
/əˈveɪl/
🇬🇧
/əˈveɪl/
To help or be useful.
He tried to avail himself of the opportunity.
他试图利用这个机会。
To work well in a situation.
The treatment did not avail the patient.
治疗对病人没有效果。
How useful something is.
The avail of the tool was clear.
这个工具的用处很明显。