leach
/li:tʃ; litʃ/ v
1 [Tn] make (liquid) percolatethrough soil, ore, ash, etc 使（液体）过滤.
2 [Tn.pr, Tn.p]~ sth from sth; ~ sth out/away remove (soluble matter) from sth by the action of a percolating fluid 滤去某物中的（可溶物质）
leach minerals from the soil 滤去土壤中的矿物质.