单词：progressive motion servomotor
单词：progressive motion servomotor 相关文章
DAVID GREENE, HOST: Here's a trend. Far more Democrats are describing themselves as progressive these days than they did four years ago. There are strategic reasons candidates are embracing this label. But one major reason, as NPR's Asma Khalid repor
2018年NPR美国国家公共电台10月
Editor's note: See An Introduction to Verb Tenses for the first story in this series. For VOA Learning English, this is Everyday Grammar. This is the last in our four-part series on verb tenses. Make sure you see our episodes on progressive and perfe
2017年VOA慢速英语(一)月
The Perfect Progressive Tenses Editor's note: See An Introduction to Verb Tenses for the first story in this series. For VOA Learning English, this is Everyday Grammar. This is the last in our four-part series on verb tenses. Make sure you see our ep
2016年VOA慢速英语(一)月
Are You Progressing with Progressive Tenses? Editors note: This is the second of a four-part series on verb tenses. Click here to see part one. For VOA Learning English, this is Everyday Grammar. Today we are going to look at the progressive verb ten
2016年VOA慢速英语(一)月
STEVE INSKEEP, HOST: You know, when I was a kid, I watched pro wrestling on TV. The matches often featured a good guy, like Hulk Hogan, against a bad guy, a bad guy like the Iron Sheik, a cartoonish Middle Eastern evil dude. Pro wrestling played off
2017年NPR美国国家公共电台7月
Word Up, Brain 新发展起来的大脑皮层在调节机能上起着主要作用；而皮层下各级脑部及脊髓虽也有发展，但在机能上已从属于大脑皮层。高等动物一旦失去大脑皮层，就不能维持其正常的生命活
英语听力文摘 English Digest