As a result , these females contribute a larger proportion to the next generation , which allows their freeloading wolbachia to spread more widely 结果这些雌性生下的女儿在新世代中所占的比例很高，吃白食的沃巴赫菌因而有机会散播得更广。
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Without a penny on him , he then undergoes an arduous but hilarious journey freeloading his way across america from los angeles to new york 于是身无分文的杰克经历了一段充满艰辛却又逗趣十足的旅程，他靠着别人的帮助从洛杉矶到纽约横越了整个美国，返回家乡过圣诞节。
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