Bluefin tuna conservation success in the UK 英国的蓝鳍金枪鱼保护工作成效显著
Why it is so hard to start exercising 为什么开始锻炼如此困难
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：extra
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