不备翻译

英语翻译：

off guard; unprepared

例句：

1. 他乘其不备击中了他。
   He hit him when his guard was down.
2. 有两个男孩子趁我们不备，偷了我们的箱子就跑了。
   Two boys made off with our cases while we weren't looking.

分词翻译：

不的英语翻译：

nay; no; non-; nope; not; without
【医】 a-; non-; un-

备的英语翻译：

have; prepare