leach
leach
verb
verb
- [with obj. and adverbial of direction]make (a soluble chemical or mineral) drain away from soil, ash, or similar material by the action of percolating liquid, especially rainwater
（从土壤、灰等中）淋洗（可溶化学物质、矿物）
the nutrient is quickly leached away.
营养成分很快就被淋洗。
■[no obj. , with adverbial of direction](of a soluble chemical or mineral) drain away from soil, ash, etc. in this way
（可溶化学物质、矿物）被淋洗
coats of varnish prevent the dye leac- hing out.
青漆涂层防止染料溶失。
■[with obj.]subject (soil, ash, etc.) to this process
滤析（土壤、灰等）
- Old English leccan 'to water', of West Germanic origin. The current sense dates from the mid 19th cent
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