He had shown himself careless of personalsafety where the life of his colleagues might be at risk.
他在同事们有生命危险时表现出不顾个人安危之举。
《柯林斯英汉双解大词典》
2
We should make every effort to prevent violence happening at school, for more and more students would drop out of school if their personalsafety couldn't be guaranteed.
我们应该尽力防止校园暴力事件的发生，因为如果不能保证学生的人身安全，会有越来越多的学生辍学。
3
He went to the rescue of a drowning child regardless of his personalsafety.