看冬至
The Earth’s solstices come twice a year. For the Northern Hemisphere, the summer (June) solstice occurs around June 20-21, and the winter (December) solstice happens around Dec. 21-22. 地球的至日一年有两次。对于北半球来说,夏至发生在6月20-21日左右,冬至发生在12月21-22日左右。 At the solstice, the Sun’s path appears farthest north or south, depending on which half of the planet you are on. S...