on the dot

副词 on the dot:

1. just as it should be
   同义词：precisely, exactly, on the nose, on the button

1. No matter how hard the times get, the wages of sin are always liberal and on the dot.
   无论世事如何变迁，罪恶的薪酬(报应)总是丰富而准时。
2. He's very punctual always arrives on the dot.
   他很守时--总是按时到。
3. The train arrived on the dot of three o'clock.
   那辆火车三点钟准时到达。