长期使用化学肥料,可能会改变土壤的结构。Chángqī shǐyòng huàxué féiliào, kěnéng huì gǎibiàn tǔrǎng de jiégòu.Long-term use of chemical fertilisers may change the structure of the soil.
这里的土壤很肥沃,适合种水稻。Zhèlǐ de tǔrǎng hěn féiwò, shìhé zhòng shuǐdào.The soil here is very fertile and suits growing rice.
农民把落叶埋进土壤里,让它变成肥料。Nóngmín bǎ luòyè mái jìn tǔrǎng lǐ, ràng tā biànchéng féiliào.The farmer buries fallen leaves in the soil to turn them into fertiliser.