英语词汇：火车票还没买就卖完

sold out=卖完，sell sth for 5=卖了5块，sell-by date=食物保质期，sell well=卖得好，sell badly=卖不出去，sell like hot cakes=热销，sell yourself=推销自己，sell your body=出卖色相，sell sb down the river=出卖别人，pyramid selling=金字塔式销售,传销