zhè jù huà de yìsi shì zhòngdiǎn nèiróng yīdìng yào huì dàn bùyào zhǐ bèi dá'àn

这句话的意思是：重点内容一定要会，但不要只背答案。

This sentence means that you must master the key points, but don't just memorize the answers.