The moon god has to come up at night and hang around for a while And go back down.

月神每晚都得出来，并且在天空悬一会儿,然后才能回去。

耶鲁公开课 - 旧约导论课程节选

It's a double stranded circular piece of DNA, meaning that the 3', 5'ends that hang off are joined back together again to form a continuous loop.

它是双链环状DNA,它的3'末端和5'末端首尾相连,构成一种连续环状结构

耶鲁公开课 - 生物医学工程探索课程节选