The 100 or so editions Watson left for passengers to pore over were even more special because she left a hand-written inscription. The paperbacks were copies of Kaya Angelou's Mom & Me & Mom.

One person who discovered a copy of the book on the Tube said she felt like the character Charlie Bucket – a boy who finds a golden ticket to the world's greatest chocolate factory – in the Roald Dahl classic, Charlie and the Chocolate Factory.

Watson became a UN Women Goodwill Ambassador in the summer of 2017 and has since started devouring as many books and essays on equality and feminism as possible. She has also started her own book club.

So, why not take a leaf out of Emma Watson's book and leave a copy of your favourite book on a train? It could make a stranger's life richer.

词汇表 a turn-up for the books 意想不到的事情，出乎意料的事

a bookworm 书虫，书迷

based on 以……改编的

a novel 小说

fictional 虚构的

to leaf through 略读，浏览

to bury oneself (in something) 把自己埋在（某物）中

a tome 巨著

to dip into 随便翻翻

to skim 粗略地浏览

a volume 书；卷，册

an edition 版本

to pore over 仔细阅读

hand-written 手写的

an inscription 题赠，题词

a classic （书）经典作品

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