1．只能使用5个句子表达全部内容；
2．文章开头已经给出，不计入总句数。
hello, mr. houston, there are two ways to get to baiyun mountain.
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hello, mr. houston, there are two ways to get to baiyun mountain. you can take a bus to go there by yourself or join a group tour. going with a group tour is certainly more convenient because everything is taken care for you including the ticket and lunch. on the other hand, if you go by yourself, you won't have to stop anywhere on the way, which means that you can spend more time on the mountain. you can take no. 256
