While slavery has been officially banned under international conventions for decades, its latter-day offshoots - including human trafficking, child labor, forced marriage and bonded labor - remain rife, the United Nations says.

• 据联合国称，随着奴隶制被国际公约正式禁止，它的后期衍生物，包括贩卖人口、（雇佣）童工、强迫婚姻、劳动力抵押等，却随之盛行。