created sense approved 淀 · diàn · shallow lake
淀
diàn
shallow lake
(bound form) shallow lake (usually in place names)
白洋淀是华北平原最大的淡水湖。
created sense approved 淀/澱 · diàn · precipitate
淀 / 澱
diàn
precipitate
to form sediment; to precipitate
这种液体需要时间让杂质沉淀。