大凡事物，听其自然就会每况愈下。

Left to themselves, things tend to go from bad to worse.

对于小病，往往最好是听其自然。

With minor ailments the best thing is often to let nature take its course.

事到如今，我们也只好听其自然了。

With things as such, we'll have to let things slide.

我看不出有什么法子，除了不吭声，而且听其自然；肯尼兹到了，我带着一副难看的神色去为他通报。

I saw nothing for it but to hold my tongue, and suffer matters to take their course; and Kenneth being arrived, I went with a badly composed countenance to announce him.