我經(jīng)常和爸爸在家下棋，爸爸下得比我好，總是贏我，但我下決心，
    要贏他，有時我私下研究，想提高棋藝，昨天我終于贏了一次。
    i often played chess with my father at home. he played better than me and always beat me. but i made up my mind to beat him. sometimes i studied chess in secret in order to improve the skill in chess. yesterday i beat him at last.