等価: equivalent

投下: investment / 透過: penetration / 灯火: lamp / 等価: equivalence / 糖化: saccharification / 灯下: by lamp / 踏歌: an ancient dance / 藤花: wisteria flower / 頭花: flower head / 東下: going east / 刀下: under the sword

東下: to go east / 投下: to invest / 透過: to penetrate / 糖化: to saccharify / 登科: to pass the civil service test

吐息: a sigh, exhaled breath

怒涛: surging waves

唐菓子: Tang confectionery

読点: comma

滔天: a male given name

偸安: snatching a moment of rest / 答案: answer, exam paper

偸安: to snatch a moment of rest