国家

guó jiā country; nation; state; CL:個|个[ge4]

电网

diàn wǎng electrical network

供需

gōng xū supply and demand

是

shì is; are; am; yes; to be

shì variant of 是[shi4]; (used in given names)

什么

shén me what?; who?; something; anything

意思

yì si idea; opinion; meaning; wish; desire; interest; fun; token of appreciation, affection etc; CL:個|个[ge4]; to give as a small token; to do sth as a gesture of goodwill etc

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