开

kāi to open; to start; to turn on; to boil; to write out (a prescription, check, invoice etc); to operate (a vehicle); carat (gold); abbr. for Kelvin, 開爾文|开尔文[Kai1 er3 wen2]; abbr. for 開本|开本[kai1 ben3], book format

云

yún cloud; CL:朵[duo3]

yún (classical) to say

Yún surname Yun; abbr. for Yunnan Province 雲南省|云南省[Yun2 nan2 Sheng3]

电

diàn electric; electricity; electrical

竞

jìng to compete; to contend; to struggle

维基百科

Wéi jī bǎi kē Wikipedia (online encyclopedia)

Wéi jī Bǎi kē Wikipedia (online encyclopedia)

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