词汇	preceding sunspot
释义	preceding sunspot 前导黑子
随便看	Occurring every ten years Occurring every third year Occurring every two months Occurring every two months; bimonthly occurring every two weeks occurring factor occurring features occurring frequency spectrum Occurring from time to time occurring immediately after birth Occurring in or marked by abundance Occurring in or marked by abundance; plentiful Occurring law Occurring,living,or working along a seacoast Occurring, living, or working along a seacoast occurring mechanism occurring mechanisms occurring mode Occurring of Phones Occurring one after anther Occurring or done at an inappropriate time occurring or existing before birth occurring or payable every month occurring regularity Occurring regulation