leach

滤出、流失、渗出

Nitrates from the fields leach into the groundwater.

农田里的硝酸盐会渗入地下水。

冲走、滤去、溶出

Heavy rain leaches nutrients out of the topsoil.

大雨会把表土里的养分冲走。

逐渐流失、一点一点消失多与 away 连用

His confidence leached away after the third rejection.

第三次被拒绝后，他的自信一点一点消失了。

淋溶、滤取专业

The lab measured the leach of metals from the waste pile.

实验室测量了废料堆中金属的淋溶量。