I can rest easy knowing that she's safely home.

　　知道她安然無恙地回到家里，我就可以放心了。

　　We can safely draw some conclusions from our discussion.

　　從討論中我們可以有把握地得出一些結(jié)論。

　　Let her come home safely!

　　讓她平平安安回家吧！

　　I was pleased to hear you arrived home safely.

　　聽說你平安到家我很高興。

　　I was thankful to see they'd all arrived safely.

　　看到他們都平安到達，我感到欣慰。