Then pinch the new shoots between your thumb and forefinger.

VOA: special.2009.10.06

Go ahead and just pinch the metal plates and watch your eyes 'cause these do--things do have little springs.

挤压这些金属片,你会注意到没什么弹性。

哈佛公开课 - 计算机科学课程节选

Go ahead and just pinch the metal plates and watch your eyes 'cause these do--things do have little springs.

挤压这些金属片,你会注意到没什么弹性。

哈佛公开课 - 计算机科学课程节选