at six in the morning
午前６時に
at speed
高速で
at sunrise
日の出に
at ten minutes(') notice
１０分前の予告で
at ten o'clock prompt
１０時きっかりに
at ten past six
６時１０分（過ぎ）に
At ten the King granted him an audience [received him in audience].
国王は１０時に彼を引見した
at [in] that (very) instant
まさにその瞬間
at that time
その頃
at the age of 17
１７歳で
