The bridge is liable to collapse at any moment.

那座桥随时可能坍塌。

They were at the mercy of informers who might at any moment denounce them.

他们完全受那些随时可能告发他们的告密者的支配。

I felt like a rubber band that was going to snap at any moment.

我觉得自己像一条紧绷着的橡皮筋，随时随地就会断裂。

He said, in a low voice, "The moon might come out at any moment."

他低声说：“月亮随时都可能出来。”

Toad may be brought back at any moment—on a stretcher, or between two policemen.

托德随时都可能被带回来——放在担架上，或者夹在两个警察中间。