unusable

adj.

不能用的；

1. This log file is damaged and is unusable.
   此日志文件已损坏且无法使用。
2. There are several sectors unusable in this disk.
   这张磁盘有几个扇区坏了。
3. This wastes bandwidth and makes the network unusable.
   这会浪费网路频宽并造成网路无法使用。

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