nǐ / fàng xīn / wǒ / shuō huà suàn huà / míng tiān / yī dìng / bǎ / qián / huán / gěi / nǐ

你放心，我说话算话，明天一定把钱还给你。

Don't worry, I'll keep my word and definitely return the money to you tomorrow.