promptly
🇺🇸
/ˈprɑːmptli/
🇬🇧
/ˈprɒmptli/
without delay
Please reply promptly to the email.
请及时回复这封邮件。
exactly on time
The meeting starts promptly at 9 AM.
会议准时在上午9点开始。
right away
He promptly answered the question.
他立刻回答了问题。