It was Mark's first introduction to emergency duties and he came through his baptism of fire unscathed.

那是马克第一次接受紧急工作，但是他经受住了炮火的考验，毫发未损。

It is my baptism of fire.

这是我的第一个挑战。

It was a rather unromantic baptism of fire.

这实在称不上是一次浪漫的战火洗礼。

Baptism of fire.

炮火的洗礼。

It was, of course, my baptism of fire, my first time in combat.

当然，第一次参战就是我的战火的洗礼了。