be the equal of one's word; do what one says

1. 你真天真，竟會(huì)信他能說(shuō)到做到。
   It's naive of you to believe he'll do what he says.
2. 我說(shuō)過(guò)我要幫助他，我說(shuō)到做到。
   I said I would help him and I meant it.
3. 他們答應(yīng)六月份完成這項(xiàng)工作，但他們能說(shuō)到做到嗎？
   They promise to finish the job in June, but can they deliver (on that)?

說(shuō)的英語(yǔ)翻譯：

到的英語(yǔ)翻譯：

做到的英語(yǔ)翻譯：