他们发现：那些第一阶段花费了35秒，且每天登陆频次在0.3次的用户往往会直接放弃下一步操作。
What they discovered was that those who spent 35 seconds in their first session and logged in at a frequency of 0.3 times per day were the ones who quit.
刚刚结束的嫦娥三号任务标志着中国探月计划第二阶段的完成，这一阶段包括在月球轨道上运行、登陆月球以及返回地球。
The just-concluded Chang 'e-3 mission marked the completion of the second phase of China's lunar program, which included orbiting and landing on the moon and returning to Earth.
刚刚结束的嫦娥三号任务标志着中国探月计划第二阶段的完成，这一阶段包括在月球轨道上运行、登陆月球以及返回地球。 。
Thee just-concluded Chang'e-3 mission marked the completion of the second phase of China's lunar program, which included orbiting and landing on the moon and returning to Earth.
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