."Mommy, are you coming to pick us up this afternoon""of course."at the gate of the kindergarten, Wen Yingyi gently squatted down in front of the children and helped them tidy up their clothes and hat... watch in front of her."buzz. Buzz. ""Hello"in a few seconds, a crispy child's voice came from the other side of the phone.Wen immediately grabbed a straw. She grabbed the phone and said, "Ink, it's M...