- 1淋溶；瀝濾（養分被雨水從土壤帶走，常說淋溶；廢棄物把有害物質洗進水裡，常說瀝濾）
If a substance leaches, or is leached, water moving through a bigger mass — soil, ash, old rubbish, crushed rock — slowly carries that substance out. Rain can leach plant food from farm soil down into the ground; an old dump can leach chemicals into a river. Miners sometimes leach metal from crushed rock on purpose, by pouring liquid over it. You will meet this in science, farming, and pollution news. It is not a kitchen word, though the idea is a little like tea colour leaving the leaves. You can say the rain leached the minerals, or the minerals leached from the soil — both are used. Though actually it sounds like leech, the worm that drinks blood; that is a different word with a different spelling.
組成The noun comes from Middle English leche, an old word for a muddy stream or drain, going back to an old idea of liquid slipping through. The verb comes from Old English leccan, to water or make wet. Both sit with leak and lake.
原始詞典資料11 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
Leachname/liːt͡ʃ/
- 1
A surname from Old English.
- 2
A census-designated place in Delaware County, Oklahoma, United States.
- 3
An unincorporated community in Carroll County, Tennessee, United States.
- 4
A river in Gloucestershire, with a short stretch in Oxfordshire, England, which joins the Thames at Lechlade; in full, the River Leach.
leachnoun詞源 1/liːt͡ʃ/
- 1
A quantity of wood ashes, through which water passes, and thus imbibes the alkali.
- 2
A tub or vat for leaching ashes, bark, etc.
- "This is the leach," said Kitty, pointing to a large, yellowish, upright wooden cylinder, which rested on some slanting boards, down the surface of which ran a brownish liquid that dripped into a trough.
- 3
A jelly-like sweetmeat popular in the fifteenth century.
leachverb詞源 2/liːt͡ʃ/
- 1
To purge a soluble matter out of something by the action of a percolating fluid.
- Heavy rainfall can leach out minerals important for plant growth from the soil.
- [T]he very wet winter will have washed much of the goodness out of the soil. Homemade compost and the load of manure we get from a friendly farmer may not be enough to compensate for what has leached from the ground.
- 2
To part with soluble constituents by percolation.
- The gangue was leached to recover minerals left behind by the original technology.
- 3
To bleed; to seep.
- A more generic geography, one where the suburb uneasily abuts the commercial and industrial, or leaches out to a nonurban frontier.
- There's a second half to each video. He remembers now. He watched it passively, over and over, and never saw it. Something comes through. It's been leaching into the background of the world this whole time, in plain sight, and he never saw it, and it's here now—
這個拼法也被記錄為下列字的變化形：
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。