1. The communication medium was a computer, phone line, and modem.
    它需要一台电脑、电话线和调制解调器。

2. And slipping through a medium that seems to help its passage even when the wind is adverse.
    虽然我们不再从它们的飞翔姿态来占卜吉凶，

3. Sound travels through the medium fo air.
    声音通过空气作为媒介传播.

4. So many transactions and exchanges are going to be made through this medium — banking, shopping, communication, and information — that those who have to rely on the postman to send their correspondence risk really falling behind," he says.
    那么多的交易、交换都将通过这一媒体进行 -- 银行业务、购物、通信、信息 -- 因此那些只能靠邮递员发送信件的人实在是有落伍的危险了。"