yóuyú / jiātíng / pínkùn / tā / cóngxiǎo / jiù / chǎnshēng / le / qiángliè / de / liè děng gǎn由于家庭贫困,他从小就产生了强烈的劣等感。Because of family poverty, he developed a strong sense of inferiority from a young age.