问题描述：
An Arab is travelling in the desert on his camel.
一个阿拉伯人正骑着骆驼在沙漠中旅行.
为什么把in the desert 放前面把on his camel.放后面?
一个阿拉伯人正骑着骆驼在沙漠中旅行.
为什么把in the desert 放前面把on his camel.放后面?
问题解答：
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