youdao

The first transistor was about the size of the palm of a hand, with a depth of two matchbooks stacked on top of each other.

第一个晶体管的大小约为手掌大小，有两个叠起来的火柴盒那么高。

youdao

A serving size is about what fits into the palm of your hand (larger for men than women, smaller for children).

一份正餐份量的尺寸应该和你的手掌大小相符。(当然，男性份量比女性大，儿童则更少。)

youdao

The differences extend well beyond size: The palm-size devices lack keyboards and color screens and are intended pretty much solely for "to do" lists and telephone numbers, while the hand-helds are surprisingly complete computer systems.

FORBES: Small and beautiful

It offers drop-in loading and a 24mm film that results in a high-quality, palm-size camera.

FORBES: How an outsider's vision saved Kodak

Microsoft has countered by importing Windows CE, a stripped-down version of Windows that can run anything from cellular telephones to videogame consoles, to palm-size computers.

FORBES: Sub-Windows