BBC Learning English - Swans 天鹅

　　Chen Li: Graze 是个动词，意思吃草，天鹅也喜欢吃水草。这些水草提供了鱼的藏身之地以及它们的食物来源。

　　Helen: Grazing is fine in deep water, because the water plant is resilient, that means it’s tough and will grow back.

　　Chen Li: Resilient 意思是容易恢复，有很强的生命力。不过如果水位降低了的话，水草就难逃天鹅之口了。

　　Helen: That’s right. In low water, swans will eat it right down to the roots and kill it off.

　　Chen Li: 把草根都吃光了 right down to the roots, 这样水草肯定活不了，kill it off.

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　　The problem here is more (that there is) not enough water in the river. Although it’s difficult to believe that today with all this flood water coming down. That’s the real issue. We need more water in the river to provide the depth for fish and birds to coexist side by side.

　　Chen Li: Paul 说真正的问题是水位下降，水量不够。

　　Helen: We need more water in the river.

　　Chen Li: 如果水深了，天鹅也就吃不到草根了，这样水草还有生存的机会。

　　Helen: So fish and birds can coexist side by side. Coexist means to live together at the same time or at the same place.

　　Chen Li: 共同生存 coexist.

　　Helen: So it seems that it’s not really the swans’ fault that the river life is under threat. They’ve been unfairly blamed.

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