It’s impossible to read Ying Ma’s fascinating memoir, “Chinese Girl in the Ghetto,” without wincing. She was born in Guangzhou, China’s third largest city. Throughout her mostly carefree early childhood years, she kept her family’s secret: that her parents repeatedly sought permission to emigrate to the United States.

Her family was not poor, at least not by Chinese standards of the late 1970s and early 1980s. Yet her daily life would be considered squalid by first world standards. Her family lived in a two-bedroom apartment. She, her brother and her parents shared one bedroom (and two plank beds). Her paternal grandparents and an uncle shared the other. At times, another uncle slept in the living room. They shared the kitchen and bathroom (such as it was) with the family next door. There was no running hot water, and the toilet was a hole in the floor. The elderly had a particularly hard time crouching.