公

gōng public; collectively owned; common; international (e.g. high seas, metric system, calendar); make public; fair; just; Duke, highest of five orders of nobility 五等爵位[wu3 deng3 jue2 wei4]; honorable (gentlemen); father-in-law; male (animal)

需

xū to require; to need; to want; necessity; need

平台

píng tái platform; terrace; flat-roofed building

登录

dēng lù to register; to log in

入口

rù kǒu entrance; to import

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