It might seem a bit like looking for a black cat in a coal cellar.

这看起来有点像在煤窖里寻找一只黑猫。

I'm prepared to spend the night in the coal cellar if you'll just fix him up — not too comfortably.

如果你把他安顿好的话， 我准备在煤窖过夜——不太舒服。

It'll be long before I promise you such a thing again. Leave the room, sir; and have the kindness to wait in the coal cellar till I call you.

我不会再轻易许诺你这样的承诺，先生请离开房间，并去往储煤室等待，直到我去叫你。