单词：sif
abbr. selective identification feature 选择识别特征
词型变化：名词复数形式 : sifs
单词：sif 相关文章
There are five kinds of . . . There are two types of . . . There are three categories of . . . We can divide (this) into three parts: 1) 2) 3) This can be broken down into four sections. They are: A) B) C) D)
发表于:2018-12-17 / 阅读(317) / 评论(0)
英语词组对话
英语词组对话
By Ken Schwartz Washington 26 September 2006 John Negroponte U.S. National Intelligence Director John Negroponte says news reports of a document which says the war in Iraq has spawned a new generation of Islamic terrorists distorts what he calls the
发表于:2019-01-12 / 阅读(330) / 评论(0)
2006年VOA标准英语（九月）
2006年VOA标准英语（九月）