1、Line integral is lightsome and flexible.
線整體輕盈而柔韌。

2、Could my singing flies in the blue sky as lightsome as a kite? If it was wrote into notes?
我的歌聲，寫成音符，能否和風箏一樣輕盈地飛在藍天上？

3、Cross the heaviest thing in life with the most lightsome pace.
用最輕盈的腳步跨過生命中最沉重的事情。

lightsome翻譯