She is a nurse's aide.她是护士的助手.He was supposed to act as the marshal's aide.他的职责是作指挥官的副官.An aide to the governor will be at the hearing here this afternoon.州长的一位助手要来出席今天下午的听证会....
Ouch! You trod on my toe!哎哟!你踩着我的脚指头了!Every day he trod the same path through the woods.他每天沿同一条路走过森林.She trod lightly in order not to wake the family.她脚步轻轻地走,以免惊醒家里的人们....