C274 Three Words That I Can't Understand

Tang Xiaobao's bedroom was still lit. Tang Ruochu walked over to take a look. The little guy was studying something under the lamp.

"Why aren't you sleeping?" Tang Ruochu asked softly.

"Mommy, you're back?" The little guy sat on the bed in his bedroom with a small box in his hand. He looked around and saw Tang Ruochu come in. He went over and asked, "Mommy