not willing to chance it的意思|示意

So they're not willing to make bold move or take any chance that could gain an upper hand over kidnappers, if it could also further jeopardize hostage's lives.

所以，他们不愿做出大胆举措甚至某些有可能迅速突破危局制服歹徒的方法，只要这些举措和方法可能会影响到人质的安全。

It gives them a chance to gamble on themselves, and it also raises an important question: "Should we be getting married if we're not willing to sign up?"

这让他们有机会将赌注押在自己身上。同时也向他们提出了一个重要的问题：“如果我们连报名都不愿意，那我们应该结婚吗？”