An outer layer on each of the eight surrounding pyramids selectively blocks out portions of the structures throughout the month, keeping track of the lunar cycle like hands on a clock.
周围8个金字塔中每一个上的外层有选择地摆出整个月的某一结构部分，像手上的钟表一样记录着月亮的周期。
At seven o 'clock Friday night, China's second lunar orbiter Chang 'e-2 will complete its 6 month mission, which was launched on October, 1st, 2010.
星期五晚上7点，中国第二颗月球卫星嫦娥二号将完成其从2010年10月1日发射后的6个月使命。
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