They covenanted that their hostages would be present.

他们保证他们的人质到场。

The butler gave a little cough to announce his presence.

男管家轻轻咳了一下，示意他已到场。

Everyone present admitted that the judge's decision was eminently fair.

每个到场的人都承认法官的判决非常公。

I insist that you (should) be present.

请您务必到场。

Barring accidents, I'll be there.

除非有意外事故, 我会一定到场的。

He defaulted on the rehearsal.

他在排练时没有到场。