Subject + 说道 + Quoted Speech
说道 (shuōdào) is a verb meaning "to say" or "to remark," commonly used in written or narrative Chinese to introduce direct or indirect speech. It is more literary than the simpler 说. It typically appears before or after a quoted statement.
他看着窗外说道:"今天天气真好。"
Tā kànzhe chuāngwài shuōdào: "Jīntiān tiānqì zhēn hǎo."
He looked out the window and said, "The weather is really nice today."
老师微笑着说道:"你们做得很棒。"
Lǎoshī wēixiàozhe shuōdào: "Nǐmen zuò de hěn bàng."
The teacher smiled and said, "You all did a great job."
她轻声说道:"我们走吧。"
Tā qīngshēng shuōdào: "Wǒmen zǒu ba."
She said softly, "Let's go."