a safe bet
US /ə seɪf bet/
UK /ə seɪf bet/
1.
十拿九穩, 穩妥的選擇
something that is certain to happen or to be successful
:
•
It's a safe bet that the new restaurant will be popular.
這家新餐廳肯定會很受歡迎。
•
Given his track record, he's a safe bet for the promotion.
鑒於他的過往記錄，他獲得晉升是十拿九穩。