It's a sad fact that many of those killed were children.
让人难以接受的是遇难者中很多是孩子。
It was sad to see them go.
看着他们离去，真让人难过。
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。