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Arctic terns also follow a zigzagging route on their spring trips back to Greenland.
北极燕鸥在春季回到格陵兰的时候也以之字型方式飞行.
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I took several photos of the Chinese crested tern amidst the Greater crested terns.
我拍了许多黑嘴端凤头燕鸥在一群凤头燕鸥中的照片.
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