今日小常识

　　This photo of a Southern cassowary won the first prize in the Nature Single category at this year's World Press Photo Contest. The colourful birds, which are closely related to ostriches, can live for over 60 years and stand about 2m tall.

　　“南方鹤鸵”这张照片获得了2013年世界新闻摄影大赛自然类单幅一等奖。图中的鹤鸵与鸵鸟属于同类别鸟。鹤鸵的体高两米左右，寿命可长达60多年。

　　今日短语

　　如果你坚持做某事直到 you are blue in the face, 意思就是你花很长时间做一件事情，做到脸都发青了也没用，不会成功。

　　例句

　　Martin argued with his mother until he was blue in the face, but she still made him wash the dishes.

　　You can walk up and down the high street until you are blue in the face, but you won't find a shop selling leather shoes as cool or as cheap as these!

　　请注意

　　短语 ‘once in a blue moon’ 的意思是千载难逢的，罕见的，难得的。

　　I only eat red meat once in a blue moon these days. You never know what's in your burgers, especially after the horsemeat scandal.

编辑：张雨

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