Well, that is a plain statement of fact.

嗯，这是一个简单的事实陈述。

In the first place, I wish to lay before you a particular, plain statement, touching the living bulk of this leviathan, whose skeleton we are briefly to exhibit.

首先，我希望就这头大鲸活的躯体做一个特别而清晰的说明，它的骨架我们只做简单的展示。

These statements may seem highly dubious to you now, but when we are finished I hope that you will see that they are plain statements of fact.

这些陈述现在对你来说可能看起来非常可疑，但当我们完成时，我希望你会看到它们是事实的简单陈述。