He's reading an interesting book.

英 美
  • an art.(用在元音音素前)一
  • book n.书;本子v.预订;记录在案
  • HES abbr.厚漆单层丝色的(=Heavy-EnamelSingle-Silk)
  • interesting adj.有趣的;引人入胜的
  • reading n.阅读;读物;读数;理解;异文动词read的现在分词.