Those were the happiest days of my life.
那是我一生中最幸福的一段时光。
Main Street won't be happy with this new program.
中产阶级不会对这个新计划感到高兴的。
Happy New Year to one and all!
祝各位新年快乐！
I think we can manage quite happily on our own.
我想我们自己完全能够应付。
This suggestion did not fit very happily with our existing plans.
这个建议与我们目前的计划不十分契合。