- the solstice that marks the onset of summer, at the time of the longest day, about 21 June in the northern hemisphere and 22 December in the southern hemisphere.；the solstice in June, when the sun reaches its maximum declination.
noun: summer solstice, plural noun: summer solstices
...the coldest day of the year) 冬至 : the winter solstice 夜晚最長 夏至：the summer solstice 白天最長 字典的定義，也是標準句子：The summer solstice is the...
春分 the Spring Equinox 夏至 the summer solstice 秋分 the Autumnal Equinox 冬至 the winter solstice
...Summer 5.小滿 Grain Full 6.芒種 Ninth solar term 7.夏至 Summer solstice 8.小暑 Slight Heat 9.大暑 Great Heat 10.立秋...