贸 Strokes Write it Listen 贸 mào commerce, trade HSK 5 9 strokes Radical 贝 Sound + meaning 3 words Built from卯soundmǎo4th terrestrial branch; period from 5-7 a.m.贝meaningbèisea shell; money, currency How it works贝 hints at the meaning (money), and 卯 mǎo hints at the sound.