When you've seen something strange often enough, you stop being surprised by it.
看到怪异的现象不要大惊小怪。指遇到不常见的事物或意外情况，要沉着镇静。
宋·洪迈《夷坚三志己》卷二畜生之言何足为信？我已数月来知之矣。见怪不怪，其怪自坏。”
After living near the airport for years, she was immune to the noise—见怪不怪.
Learn the next connected idiom: 见怪不怪 (jiàn guài bù guài) → 怪力乱神 (guài lì luàn shén)
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