Mao Sanmei may not be able to hear, but that doesn't mean she didn't understand what Tang Tang was saying.
Despite being deaf and mute for many years, she could still understand some simple lip shapes, especially commonly used words like 'mom' and 'dad'.
At first, she didn't care much, but she quickly realized what was happening.
Both surprised and delighted, she even doubted if she saw it correctly.
So, she gestured to Tang Tang with her hands and uttered the word "mom."
But her "mom" was not accurate since she had never heard the actual pronunciation and was merely imitating the lip shape.
However, Tang Tang understood, and cheerfully called out "mom" again.
This time Mao Sanmei was certain she hadn't seen it wrong and was overwhelmed with joy.
She immediately hugged Tang Tang and rushed out of the room, seeing Shen Siyuan and Ruan Hongzhuang exercising on the balcony, she dashed over with Tang Tang.
Both of them were a bit startled, but soon understood why.