The airline has a poor _____(安全)record.
问题描述：
The airline has a poor _____(安全)record.
The officer _____（冒险）his life to save the drowning man.
答
securety 这里用这个比较好,比较正式.
risk 有这个短语risk ones life to do sth 还有risk doing sthsecurety没学过。。。那就safety 吧。。。。