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light; lamp
baiting deer with a lighted torch
「照射」 has another reading with different meanings.
暗い部屋の中で照射がゆらゆら揺れる。
The lamp flickered gently in the dark room.
照射の明かりを頼りに夜道を歩いた。
I walked the night road guided by the lamplight.
風が吹くと照射が消えそうになった。
When the wind blew, the light nearly went out.