adj.按时的，准时的，守时的

Mary promised she would be punctual.
玛丽向我保证一定准时。
Eric is always punctual for appointments.
埃里克总是准时赴约。
She's always punctual, never keeping anyone waiting.
她总是准时的，从不让人等待。
The train arrived punctually at 8 o'clock sharp.
火车准时在8点整到达。
Punctuality is crucial in the business world.
在商业世界中，守时至关重要。
He's so punctual that even his watch is synchronized with the atomic clock.
他如此准时，甚至他的手表都与原子钟同步。
Despite the heavy traffic, she managed to be punctual for the meeting.
尽管交通拥挤，她还是设法准时参加会议。
In Japan, being punctual is not just a virtue but a social obligation.
在日本，守时不仅是一种美德，也是一种社会义务。
The staff were praised for their punctuality and professionalism.
员工因他们的守时和专业精神而受到表扬。
The school emphasizes the importance of punctuality to instill discipline in students.
学校强调守时的重要性，以培养学生的纪律性。
The airline has a reputation for being punctual, rarely experiencing delays.
这家航空公司以准时著称，很少出现延误。
It's disrespectful to keep someone waiting, so always strive to be punctual.
让别人等待是不礼貌的，所以要始终努力准时。