certainly
🇺🇸
/ˈsɜːrtnli/
🇬🇧
/ˈsɜːtnli/
without any doubt
She will certainly arrive on time because she is always punctual.
她肯定會準時到達,因為她總是很守時。
yes, of course
"Can you help me?" "Certainly, I would be happy to assist you."
"你能幫我嗎?" "當然,我很樂意協助你。"