农科院通过改良品种,提高了作物在盐碱地里的成活率。Nóngkēyuàn tōngguò gǎiliáng pǐnzhǒng, tígāo le zuòwù zài yánjiǎn dì lǐ de chénghuólǜ.The academy of agricultural sciences improved the crop varieties, raising their survival rate in saline-alkali soil.
师傅把传统的炉子改良了一下,烧起来更省煤。Shīfu bǎ chuántǒng de lúzi gǎiliáng le yíxià, shāo qǐlái gèng shěng méi.The craftsman improved the traditional stove a little so that it burns with less coal.
他们用新方法改良土壤,种出的蔬菜又大又甜。Tāmen yòng xīn fāngfǎ gǎiliáng tǔrǎng, zhòng chū de shūcài yòu dà yòu tián.They improved the soil with a new method and the vegetables they grow are big and sweet.