In celebration of his 80th birthday in 1791, the emperorQianlong had a number of seals made, of which this is one of thebiggest on record.

据传在1791年，为庆祝自己的80寿辰，乾隆帝命人制作了一批玉玺，而这枚是所有记录在册的玉玺中最大的。

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An alarming number of Mediterranean monk seals, an endangered species, have recently died.

最近，濒临灭绝的地中海僧海豹出现了惊人数量的死亡。

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They have pushed down the number of polar bears and seals while polar bears depend on sea ice for hunting seals.

它们导致了北极熊和海豹数量的减少，而北极熊依靠海冰捕食海豹。

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In the past decade, the number of seals born on the beach has risen from about six to about 600 this season, which Mr Anstell described as "a bit of a phenomenon".

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Scarborough Sea Life Centre said it had treated a number of birds and seals affected by the oil.

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