1. 准时的;守时的 If you are punctual, you do something or arrive somewhere at the right time and are not late.
e.g. He's always very punctual. I'll see if he's here yet. 他总是很准时。我去看看他是否已经来了。
形容词按时的;准时的;守时的网络严守时刻的;严格守时的