I think we can manage quite happily on our own.

　　我想我們自己完全能夠應付。

　　This suggestion did not fit very happily with our existing plans.

　　這個建議與我們目前的計劃不十分契合。

　　I'll happily help, if I can.

　　如果我能幫忙，我倒很樂意。

　　She married the prince and they lived happily ever after.

　　她與王子成了婚，從此過著幸福的生活。

　　The children were playing happily with their toys.

　　孩子們正高興地玩著玩具。