VOA慢速英语:US Scientists Create First Two-Dimensional Transistor

短语讲解：

1. Scientists hope these new 2D transistors will be used for building high-resolution displays that need very little energy.

be used for 用来做…
例句：The grease from pork can be used for frying. 
猪肉炼出的油可用来煎炸食物.

2. He adds that researchers have been looking for new materials with special features.

look for 寻找
例句：The searcher fannned out to look for the missing boy. 
搜寻者散开去找那个丢失的男孩。 

3. "If the layers are very thin the transistor can become flexible, so it doesn't have to be rigid, like it would be in a silicon chip. So people can think of applications like wearable electronics, like, you know, television screens and other things," said Ioannou.

think of 考虑; 想起; 有…想法
例句：Don’t think of your product as a computer 
不要把你正在设计的产品认为是计算机 

4. This is the first time every layer is a single [atom] layer, more or less, and that's the novelty of it.

more or less 差不多， 几乎; 大约
例句： It is now more or less settled. 
现在这件事差不多定下来了。