皮 píPí HSK3 skin Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: pico- All meanings 18 pí 17 skin 15naughty 1pico- 1Pí 1 Pi 1 1 sentence for 皮 (pí — pico-) 一皮秒是极短的时间。 yī pí miǎo shì jí duǎn de shíjiān. One picosecond is an extremely short period of time. Source: Dong Chinese Dictionary