在背后并且在前面。
There are white people in the front and black people in the back.
在这辆电车里，白人坐在前面，而黑人坐在后面。
Su: the lady in the back, and then the gentleman in the front.
主持人苏起：请在后面的那位女士先问，然后是前面这位先生。
They go in the front door, turn in a circle, did not find people, and go out the back door.
他们从前门进去，转了一圈，没有找着人，又从后门走出来。
They go in the front door, turn in a circle, did not find people, and go out the back door.
他们从前门进去，转了一圈，没有找着人，又从后门走出来。
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