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to search every part of a place very carefully
彻底搜查
I've turned the house inside out but I still can't find my keys.
我把房子翻了个底朝天，仍没能找到钥匙。
I’ve turned this drawer inside out but I can’t find my passport.
我把这个抽屉翻了个底朝天，还是找不到我的护照。