leach
柯林斯词典
1. V to remove or be removed from a substance by a percolating liquid 过滤
2. N the act or process of leaching 过滤过程
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leach /liːtʃ/
剑桥词典
- [ 不及物动词：后面不接宾语的动词 or 及物动词：后面接宾语的动词 ]
When a chemical substance leaches or is leached from a material , especially soil , it is removed by the action of water passing through the material .
漂洗，过滤（尤指土壤）
The calcium , potassium , and magnesium ions are leached or washed out of the top soil into lower inaccessible subsoil . 钙、钾和镁离子被滤出表层土壤流入低层土壤却无法被吸收。
[ 及物动词：后面接宾语的动词 ]
When soil , etc. has been leached, it has had chemical substances removed from it.
（指土壤等）被漂洗，被过滤
The soil has been so heavily leached through intensive farming that it is no longer fertile . 过度耕作使养分大量流失导致土地贫瘠。 返回 leach