磁卡的用法和样例：
例句
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将车票磁卡引进纽约市地下铁路的漫长而困苦旅程上又有变化。因而一位负责交通事务的主管官员说：本市终于可以推进一项很多其他主要城市已经具备的科技。
The long, tortuous road to bringing magnetic fare cards to the New York City subways took another turn yesterday, leading to a top transportation official to say that the city can finally move forward with a technology that is already in place in many other major cities.
