柯林斯詞典leach /li?t?/ 1. V to remove or be removed from a substance by a percolating liquid 過濾2. N the act or process of leaching 過濾過程 返回 leach劍橋詞典[ 不及物動(dòng)詞：後麪不接賓語的動(dòng)詞 or 及物動(dòng)詞：後麪接賓語的動(dòng)詞 ] 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，過濾（尤指土壤） The calcium , potassium , and magnesium ions are leached or washed out of the top soil into lower inaccessible subsoil . 鈣、鉀和鎂離子被濾出表層土壤流入低層土壤卻無法被吸收。 [ 及物動(dòng)詞：後麪接賓語的動(dòng)詞 ] When soil , etc. has been leached, it has had chemical substances removed from it. （指土壤等）被漂洗，被過濾 The soil has been so heavily leached through intensive farming that it is no longer fertile . 過度耕作使養(yǎng)分大量流失導(dǎo)致土地貧瘠。 返回 leach