We were glad she let us know she was safe.
她告诉我们她平安无事，我们很高兴。
The street is not safe for children to play in.
孩子在大街上玩不安全。
The child was found safe and well.
小孩找到了，安然无恙。
I thought I was on safe ground discussing music with her.
我以为与她一起讨论音乐是稳妥的。
It's safe to assume there will always be a demand for new software.
可以肯定地认为，人们总会需求新的软件。