渣
zhā
HSK 7
渣 — zhā
- slag (in mining or smelting)
炼钢时会产生大量渣。 liàngāng shíhuì chǎnshēng dàliàng zhā — A large amount of slag is produced when steel is smelted.
- dregs; residue (e.g. tea leaves, coffee grounds, or other sediment)
杯底有些茶渣,别喝了。 bēidǐ yǒuxiē cházhā biéhēle — There are some tea dregs at the bottom of the cup; don't drink it.