punctual的名词：punctuality

英 [pktjlti] 美 [pktulti]

n.严守时间;敏捷

例句：

Reliability and punctuality have become more important.

可靠性和准时性变得更为重要

His habit of punctuality has not changed since he was eight years old.

他守时的习惯自八岁以来一直没改。