这个字我记不住。

Zhè gè zì wǒ jì bu zhù.

I cannot remember this character.

请你记一下明天开会的时间和地点。

Qǐng nǐ jì yíxià míngtiān kāihuì de shíjiān hé dìdiǎn.

Please write down the time and place of tomorrow's meeting.

这件事太特别了，我一辈子都会记在心里。

Zhè jiàn shì tài tèbié le, wǒ yí bèizi dōu huì jì zài xīnlǐ.

This matter is so special that I will remember it in my heart for my whole life.