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努力， どりょく
1. effort, exertion, endeavour, endeavor, hard work, striving
努力
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！
