in a minute和to the minute的区别和用法

in a minute v.s. to the minute

adv. 马上，立即；        恰好， 准时

e.g.

1.The plane bound for Beijing will take off at one o’clock to the minute.

   开往北京的飞机将在1点准时起飞。

2.John, come here in a minute. The kitchen is on fire!

   John,快点过来，厨房着火了！

3.I am afraid the trains during the spring festival can hardly arrive to the minute.

   我恐怕春节期间火车不太可能准点到达。