hushing

Historically, hushing was a common technique for extracting gold from hillsides.

历史上，冲刷找矿法是从山坡上提取黄金的常用技术。

用法提示：作为名词，表示'冲刷找矿法'，指一种采矿技术。

The teacher kept hushing the students, but they wouldn't stop talking.

老师不断让学生安静，但他们就是不停说话。

用法提示：作为动词的现在分词，表示'使安静'的动作。

The gardener is hushing the soil off the roots with a gentle stream of water.

园丁用细小的水流冲刷掉根部的土壤。

用法提示：作为动词的现在分词，表示'用水冲刷'的动作。