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Even the middle class has access to penicillin, air travel, good cheap food, the Internet, and cable TV, not to mention a heart bypass operation, if needed. 中产阶级也有机会使用青霉素、飞机旅行、便宜食品、因特网络和有线电视，更不用说心脏搭桥手术，如果有必要的话。 - 2
The control cable system must be displaced full travel in each direction for complete inspection at fairleads, air pressure seals, grommets, quadrants, drums, and over pulleys. 控制用线缆系统在全套检查的时候，导缆器，气压密封件，金属扣眼，象限仪，鼓，和滑轮等处，都应该在每个方向都进行偏转到头的移位测试。 - 3
For example, a telephone call may travel by means of copper wire, fiber-optic cable, and radio waves as the call is sent from sender to receiver. 例如，电话中的通话从讲话人传送到听话人，其间可能要通过铜线、光缆和无线电波进行传输。
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