单词：PEK
音标：[pek] ；
[化] 聚醚酮
单词：PEK 相关文章
By Noel King Khartoum, Sudan 10 September 2006 American journalist Paul Salopek is on his way back to the United States following his release from jail by the Sudanese government Saturday. Salopek was arrested and charged with spying in early August
发表于:2019-02-03 / 阅读(96) / 评论(0)
2006年VOA标准英语（九月）
2006年VOA标准英语（九月）