Cheng raced through a crowded shopping mall in pursuit of the man who had grabbed her purse.程穿过拥挤的购物中心快速追赶那名抢了她钱包的男子。After much bargaining, Cheng finally secured the services of a teacher.一番讨价还价之后，郑终于争取到了一位教师来任教。There is much in Cheng's work that we can admire and emulate.程的作品中有许多我们能够欣赏和效仿的方面。