Unavail
無效的,無用的
??? 情景例句
The scam they were running left many people penniless.
他們的這場騙局讓人們分文不剩。
Habit is second nature.
習慣成自然。
The site chosen was an island at the entrance of New York Harbour.
場地選在了紐約港入口處的一個鳥上。