求翻译：护工的水平有限，护工大多是搬家户，学历低、收入低，40岁左右，有的甚至是文盲，而且她们也只是将居家养老服务当做兼职是什么意思？

Limited level of care workers, care workers are mostly moving households, lower educational attainment, low income, about 40 years old, and some are even illiterate, and they are just the home care service as a part-time

The work of the care is limited, and it is the most moving, low educational attainment and low-income, about 40-year-old, and some are even illiterate, they are the only home care services as part-time

Protects the labor the level to be limited, protects the labor mostly is moves the household lowly, the school record, the income is low, about 40 years old, some is even the illiterate person, moreover they also only are care for the aged the service regard concurrent job the home

Limited level of nurses, nurses are mostly moving, less educated, low income, about 40 years old, and some even are illiterate, and they have just aged services as freelance

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