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
だろう, だろ
1. seems, I think, I guess, I wonder, I hope
2. right?, don't you agree?, I thought you'd say that!
似乎,我想,我猜,我不知道,我希望;对吧?你同意吗?我就知道你会这么说!