That's been a safe bet until now.

迄今为止，这是一个安全的赌注。

youdao

Clothes are a safe bet as a present for a teenager.

衣服适合作为送给十几岁孩子的礼物。

《牛津词典》

It is a safe bet that the current owners will not sell.

现在的主人极有可能不卖了。

《柯林斯英汉双解大词典》

But,to be on the safe side, he also places a smaller bet on the other team, to reduce a possible loss.

VOA: special.2010.01.31

Thanks to guys like Fleming, it's a safe bet the costs will climb further.

FORBES: Scourge From Texas

More prevention-minded older employees, on the other hand, are looking for a safe bet.

FORBES: Connect

It's not known whether these will be heavily subsidized, but it's a safe bet.

ENGADGET: Verizon's 2009: BlackBerrys, HTCs, netbooks, and loads of data