-----------------------------------
いつまでも， 何時までも
1. forever, eternally, for good, as long as one likes, indefinitely, endlessly, for a long time
永远，永恒，永久，随心所欲，无限期，无止境，长久
-----------------------------------
泣く， 哭く， なく
1. to cry, to weep, to sob, to howl
哭泣，啜泣，抽泣，嚎啕
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
