One New Caledonian crow, called Betty, bent some straight wire into a hook and used it to lift a small bucket of her favourite food from a vertical pipe.
一只名叫贝蒂的新喀里多尼亚乌鸦把一根笔直的铁丝咬成一个弯钩,用它把一小桶她最喜欢吃的食物从一根垂直的管子里吊了出来。
Cancers include those of the eye, mouth, voice box and food pipe.
癌症部位包括眼睛,口腔,咽喉和食道。
It is used for clear food packaging and plumbing pipe.
它被使用为透明食品包装和渠管子。
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