"fresh milk was unavailable during the emergency"
"his secretary said he was unavailable for comment"
unavailable的用法和样例:
例句
用作形容词 (adj.)
The latter is to reflect the fact that even during times when no data are being transferred, the bandwidth is unavailable to other potential users. 后者将反映事实,甚至在时代期间,当没有数据正在被转移的时候,带宽对其他的潜在使用者是得不到的。