单词:block structure mechanism
单词:block structure mechanism 相关文章
Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is abo
Technology Report - Tiny Fly May Hold Key to New Generation of Hearing Aids 小苍蝇可能是新一代助听器的关键 From VOA Learning English, this is the Technology Report. 这里是美国之音慢速英语科技报道。 A fly with an extreme
Unit five [00:49.61]Where have you been? [00:52.95]Yesterday Annie got home late.She had a meeting with hte Busy Bees. [01:01.20]Her mother was very angry.'Look at the time, Annie!'She said. [01:09.67]'It's half past seven. Where have you been?''I've
Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are us
今天学的词组是block。Block有障碍物的意思。比如road block -- 路障,Police put up a road block to stop the demonstrators, 警察为阻止抗议者设置了路障。作为动词,block也有阻塞,拦阻的意思。比如施工造成