-----------------------------------
どうしたものか， どうしたもんか
1. what is to be done?, what should (I) do?, what (am I) to do?
tbd
-----------------------------------
わかる， 分かる， 解る， 判る， 分る
1. to understand, to comprehend, to grasp, to see, to get, to follow
2. to become clear, to be known, to be discovered, to be realized, to be realised, to be found out
3. I know!, I think so too!
明白，理解；清楚，明确、被了解、被发现、被认识、被实现；明白！我也这么想！
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
