英语语法分析

One day, I saw a beautiful piece of eel just sitting there, unpriced, and I asked the fisherman for it.

有一天，我看到一条很漂亮的鳗鱼就摆在那儿，没有标价，我就向渔夫要了它。

Although mostly unpriced, it is the most valuable stuff in the world.

淡水虽然没有标价，但却是世界上最珍贵的东西。

Finally there are external effects: the unpriced costs reflected in the modern environmental crisis.

最后是由外部效应：未标价的成本反映在现代环境危机中。