Developing El Niño becomes strongest on record weeks before expected peak 厄尔尼诺持续发展，在预计达到峰值前数周已创下有记录以来最强水平
Return of the sleeper train in Europe 欧洲卧铺列车再度兴起
Leave to one's own devices 让某人自行决定，不加干预
常见工作合同类型中的英语表达
Fear for species as world's largest penguin colony loses half a million birds 世界最大企鹅群落减少 50 万只，帽带企鹅前景堪忧
一词一讲：roll
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