单词：deglycerine
[网络] 甘油三酯
单词：deglycerine 相关文章
Today we go on a journey. It starts in Sweden over 100 years ago; and then moves to London; and finally moves to future worlds and other planets. But we start in Sweden. Alfred Nobel spent his life finding ways to blow things up. He was born in 1833
发表于:2019-02-19 / 阅读(383) / 评论(0)
听播客学英语
听播客学英语