IX

英 美
  • abbr.离子交换(=IonExchange)
  • english n.英语;英国人adj.英语的;英国人的;英国的
  • ivy n.常春藤adj.学院的
Noun:
  1. the cardinal number that is the sum of eight and one

Adjective:
  1. denoting a quantity consisting of one more than eight and one less than ten