例句與造句

1. All these research sets a primary foundation for developing airline tail number assigning system software
   該項(xiàng)研究為研制飛機(jī)排班決策支持系統(tǒng)軟件奠定了理論基礎(chǔ)。
2. It's difficult to find tail number in a sentence. 用tail number造句挺難的