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1·Still, Krech attributes secondary if not primary responsibility for the extinctions to the Paleoindians, arguing that humans have produced local extinctions elsewhere.

克雷奇仍然认为古印度安人在灭绝上的责任即使不是主要的，也是次要的，他认为人类在其他地方造成了当地物种灭绝。

2·Because they're our primary responsibility.

因为他们是我们的首要责任。

3·All of us ought to remember our primary responsibility.

我们都应记住自己的首要责任。

4·Currently, his primary responsibility is to his two young children.

眼下，他的主要任务是抚养他的两个未成年的孩子。

5·Since it is a social problem, then society should bear the primary responsibility.

既然是社会问题，那么社会就应负主要责任。

6·The primary responsibility for educating and retaining members is at the club level.

而教育及留住社员的主要责任是在扶轮社的该层级。

7·Primary responsibility to sell products or services by working with current customers.

主要的工作是向现有的客户销售公司的产品和服务。

8·She said she took primary responsibility for it and had already made up for the shortfall.

她表示此事她应负“主要责任”并已剩余款项补齐。

9·They should be the salt of the earth, and the primary responsibility of salt should be salty.

他们本应成为世上的盐，而盐的首要责任应当有盐味。

10·The enterprise should undertake the primary responsibility for the environmental protection.

从这方面来讲，社会要求企业必须进行环境管理。