生活环

生活环

1

北极熊是一个生活在环北极地区的可能有灭绝危险的物种。

Polar bears are a potentially endangered species living in the circumpolar north .
2

课外活动是学校生活不可缺少的一环。

The after school activity is necessary in school life .
3

山岳不只美丽，更是生活的重要一环。

And they 're not only beautiful but also an important part of life .
4

长期以来，经济学研究关注生产、分配、交换和消费等四种经济关系，忽视了借贷关系这经济生活重要的一环。

For a long time , the economics has paid much attention to the production , allocation , exchange and consumption , and neglected borrowing and lending , which is one important part of the economic relations .