There is a computer that can read your electronic pass or ticket and are able to take the money from you or make sure that you have paid in order to use that road.
So, if you order something on the internet, you might get a confirmation to say " We've received your order, we've received your payment, we are going to deliver your order, we are sending it."
因此,如果在 Internet 上订购商品,可能会收到一条确认消息:“我们已收到的订单, 我们已收到的付款, 我们将交付的订单, 我们正在发送。
" To track (track) orders" means to make sure you know what's going on with the order at all times – whether it was paid for, whether it was shipped – that is, whether it was sent to the person who bought.