nǎi / nai / yǐ / qián / zài / fǎng / zhī / chǎng / fǎng / shā / gōng / zuò / hěn / xīn / kǔ奶奶以前在纺织厂纺纱,工作很辛苦。Grandma used to spin yarn at a textile factory; the work was very hard.