sure thing

US /ʃʊr ˈθɪŋ/
UK /ʃʊr ˈθɪŋ/
"sure thing" picture
1.

板上钉钉的事, 十拿九稳的事

something that is certain to happen or be successful

:
Winning the lottery is no sure thing.
中彩票不是板上钉钉的事
With his talent, success is a sure thing.
以他的才能,成功是板上钉钉的事
2.

没问题, 不客气

used to express agreement or to say 'you're welcome'

:
"Can you help me with this?" "Sure thing!"
“你能帮我这个吗?”“没问题!”
"Thanks for your help." "Sure thing!"
“谢谢你的帮助。”“不客气!”