shuǐ / péi / fǎ / bù / xū / yào / tǔ / rǎng / shì / hé / zài / shì / nèi / zhòng / zhí / shū / cài

水培法不需要土壤，适合在室内种植蔬菜。

Hydroponics does not require soil and is suitable for growing vegetables indoors.