red core造句

• Let us be heard from red core to black sky
  让我们的呐喊由火红的地底直达乌黑的天上去！
• The investigation showed that red core wood of poplars was the result of the physiological action of trees that played a key role and the infection by bacterium and fungus by investigating in the forest field
  摘要通过野外调查、室内病菌的分离和室内外接种及田间化学药剂的防治试验，研究杨树红心病形成原因。