retain

vt.

1. 保留，保持
   She retains a clear memory of her school days.

   她對自己的學生時代有著清晰的記憶。

2. 留住；擋住，攔住
   This vessel won't retain water.

   這容器盛不住水。

3. 記住
   Concentrated study will help you to retain knowledge.

   專心學習有助於你記住知識。

4. 聘，僱
   He retained the best lawyer in the state.

   他聘請了該州最好的律師。