1. Some people's information couldn't be retrieved. 有些人的信息无法检索。
2. He swam down and retrieved his glasses from the muck and slime at the bottom of the pond. 他潜下水去，从池塘底部的烂泥污物中找回了眼镜。
3. Specifically, both mantis shrimps and DVD or CD players are able to convert light into different forms so it can be stored and then retrieved. 具体来说，无论是螳螂虾还是 DVD 或 CD 播放机都可以将光转换成不同的形式，从而将光信号存储起来，之后还能再调取出来。
4. Maturation of the frontal lobes of the brain continues throughout early childhood, and this part of the brain may be critical for remembering particular episodes in ways that can be retrieved later. 儿童的大脑额叶在整个幼儿时期会不断成熟，而这部分大脑对于记忆特定的事件是至关重要的，以后还可以再回忆起这些事件。
