Warning: file_put_contents(): Only 0 of 6516 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/oclz.com/index.php on line 55 planetesimal hypothesis英英字典_planetesimal hypothesis剑桥英语解释_planetesimal hypothesis柯林斯英文解释_菜篮子兴趣思朗文词典
1. N the discredited theory that the close passage of a star to the sun caused many small bodies (planetesimals) to be drawn from the sun, eventually coalescing to form the planets 星子假说