1 sentence for 温 (wēn — review)

1. 这些知识学过之后要经常温，才能记在脑子里。

   zhè​xiē zhī​shi xué guo zhī​hòu yào jīng​cháng wēn, cái néng jì zài nǎo​zi lǐ.

   After learning this knowledge, you must review it frequently to keep it in your mind.

   Source: Dong Chinese Dictionary