work on
phrasal verbwork on somebody
to try to persuade somebody to agree to something or to do something 努力说服（使某人答应或做某事）
work on something
to try hard to improve or achieve something 努力改善（或完成） You need to work on your pronunciation a bit more. 你需要再加把劲改进发音。 ‘Have you sorted out a babysitter yet?’ ‘No, but I'm working on it.’ “你找到临时看孩子的保姆了吗？” “还没有，我正在找呢。” We are working on plans for a new swimming pool. 我们正在进行新游泳池的规划工作。