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反省， はんせい
1. reflection, reconsideration, introspection, meditation, contemplation
2. regret, repentance, remorse, being sorry
反省
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なきゃ， 無きゃ
1. if (it) doesn't exist, if there is no ..., if (one) doesn't have ...
2. if not ..., unless ...
3. have to ..., must ...
必须……
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かな， かなあ， かなー， かなぁ
1. I wonder
2. should I?, is it?
3. I wish that, I hope that
我猜，可能；该这样吗？是吗？；我希望，我期盼
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後悔， こうかい
1. regret, repentance, remorse
后悔，悔改，懊悔