at the ballot box
選挙で
at the barber's
理髪店で(◆くだけた表現ではat the barberも用いる)
at the beginning of the month
月初めに(◆inなら上旬)
at the beginning of the month
月の初めに
at the bottom end of the street
この道の行き止まりに
at the bottom of a garden
庭の向こう端に
at the bottom of the problems
問題の根底に
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