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思わず, おもわず
1. unconsciously, involuntarily, instinctively, reflexively, spontaneously, unintentionally, in spite of oneself
不自觉地,不由自主地,本能地,反射性地,自发地,无意间,尽管自己不愿
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笑う, 嗤う, 咲う, わらう
1. to laugh
2. to smile
3. to sneer, to ridicule
4. to be dumbfounded, to be flabbergasted
笑;微笑;冷笑,嘲弄;冷笑,嘲弄