Walking in Frankfurt last week, I began to worry I was going in the wrong direction. There was an easy way to check. The map on my company iPhone would show either that I was heading towards the river, which would be good, or away from it, which would not.
上周漫步在法兰克福街上，我开始担心自己有没有走对方向。检查起来倒是很容易。公司配给我的iPhone上有地图功能，它可以显示出我是在朝河边走（那就走对了），还是远离河边（那就走错了）。
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