Give me a few minutes to compose myself here.

给我几分钟冷静一下。

I felt a hot wave of blood rushing through my body and had to compose myself before I could answer.

我感到一股热血涌遍全身，不得不整理一下情绪才能回答。

Here I sit gasping for breath, and struggling to compose myself.

我坐在这里喘着粗气， 努力让自己镇定下来。

'I says, at first, " This is illusion" ; and was composing myself off to sleep, when I heerd the noise again, distinct.

“一开始我说，‘这是幻觉’；当我再次听到清晰的声音时，正准备入睡。