These "irregular workers" make up about 10 percent of the nonagricultural work force.

这些“非正式工人”约占非农业劳动力的10%。

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"What we are finding is that migrant workers, particularly irregular migrant workers, very often young women, around the world are at tremendous risk of serious exploitation," .

VOA: standard.2009.08.21

Shift workers whose sleep is disrupted by working at night or working long or irregular hours also face increased risks.

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