at the bottom of the stairs
階段の下に
at the break of (the) day
夜明けに
At the bridge the road turns right.
道は橋の所で右に曲がる
at the center of a political storm
政治的騒乱の真っ直中で
at the center of the scandal
スキャンダルの中心に
at [by, after] the close of ...
…の終わりに［終わるまでに，終わってから］
at the coal face
現場で
at the conclusion of the ceremony
儀式の終わりに
at the cost of illness
病気という犠牲を払って
at the cost of one's health
健康を犠牲にして
