全部

1·Another problem is how to safeguard the status, salary and welfare of the staff.

二是职工的身份、工资、福利待遇的保障。

2·There is no reason to hold the belief that humans have no direct moral responsibility to safeguard the welfare of animals.

没有理由认为人类对动物的安全没有直接的道义上的责任。

3·To safeguard the social public welfare, the solution to the environmental disputes has become a research project which can never be evaded.

为维护社会公益，解决环境公益纠纷已成为一项不容回避的课题。