例句與造句

1. Manufacturer of industrial and intermediate chemicals in china . main products include gallic acid and pyrogallic acid , trihydroxybenzoic acid and derivatives , and tannins
   -主要生產(chǎn)有機(jī)胺產(chǎn)品系列氯堿產(chǎn)品系列工業(yè)硅等產(chǎn)品的國家大二型企業(yè)。
2. It's difficult to find pyrogallic in a sentence. 用pyrogallic造句挺難的