shēng / shí / huī / kě / yǐ / yòng / lái / gǎi / liáng / suān / xìng / tǔ / rǎng / dàn / yòng / liàng / yào / shì / dàng

生石灰可以用来改良酸性土壤，但用量要适当。

Quicklime can be used to improve acidic soil, but it must be applied in moderation.