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第十八种企鹅是他发现的,因为他熟悉已经发现的十七种企鹅。那天晚上,已工作一天的他,想轻松一下自己疲劳的神经,于是他来到一家电影院。
The eighteenth penguin was discovered by him because he was familiar with the seventeen penguins that he had discovered. That night, he had a day of work, want to relax his tired nerves, so he came to a cinema.