slam dunk
US /ˈslæm dʌŋk/
UK /ˈslæm dʌŋk/

1.
2.
十拿九稳, 轻而易举
something that is easily achieved or guaranteed to succeed
:
•
Winning this contract will be a slam dunk for our company.
赢得这份合同对我们公司来说将是十拿九稳。
•
With his experience, getting that job is a slam dunk.
凭借他的经验,得到那份工作是轻而易举的事。