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burn; scald
getting one's fingers burned (e.g. poor investment, mixing with the wrong people)
熱いストーブに触れて火傷を負った。
I got burned by touching the hot stove.
揚げ物で油がはねて腕に火傷をしてしまった。
Frying splatted oil and I burned my arm.
日焼けも一種の火傷なので肌ケアが大切らしい。
Sunburn is also a type of burn, so skincare is apparently important.