Zhàngfu zài wàidì dǎgōng, tā chéng le liúshǒu jiātíng de zhǔxīngǔ.
With her husband working away, she became the backbone of the left-behind family.
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culture
Tied to China's migrant-labor economy: workers move to coastal cities while spouses, parents, or children (留守儿童) stay in the hometown. A recurring topic in 2010s–20s social-policy reporting.