The two people came together in unlikely circumstances.这两人在不大可能的情况下走到了一起。

A second inquiry is possible, but unlikely.第二次调查有可能进行, 但也未必会进行。

He is unlikely to win.他未必会赢。

The dispute is unlikely to end for a long time.这次争论在很长一段时间内不大可能停止。

It is looking increasingly unlikely that the party can win.看起来该党越来越不可能获胜了。

In the unlikely event that they give you any trouble, call the police.万一他们找你麻烦, 就叫警察。

Would you know what to do in the unlikely event of a nuclear attack?万一发生核袭击, 你知道该怎么办吗？

in the unlikely event of anything going wrong万一出问题

We have drawn up contingency plans in the unlikely event of anything going wrong.我们已经制订了应急计划以防万一。