ADV
輕松愉快地，無憂無慮地(含有批評之意，指做某事時未考慮到事情的諸多問題)
If you say that someone merrily does something, you are critical of the fact that they do it without realizing that there are a lot of problems which they have not thought about.
例句
There they were, merrily describing their 16-hour working days while simultaneously claiming to be happily married...
他們一面高興地描繪著每天16個小時的工作，一面又聲稱自己婚姻幸福。
Both NATO and the Community knew they could not go merrily on as before.
北約與歐共體都明白他們不可能再像以前那樣高枕無憂了。