Tā cóngxiǎo jiùshì gè shūchóng, měizhōu kàn hǎojǐ běn shū.
He's been a bookworm since childhood, reading several books a week.
Tips
memory
书虫 is a near-perfect calque of English 'bookworm' - same image (a worm in books) and same affectionate-nerd connotation. Useful as a self-label: 我是个书虫 ('I'm a bookworm').
