参考例句：
This period will be punctuated by the June Solstice.
这个期间内还间隔有一次夏至。
The days begin to draw in after the summer solstice.
夏至之后白天开始变短。
The hottest days of summer begin after the summer solstice.
夏天最热的日子在夏至之后开始。
summer是什么意思：
n. 夏天；夏季；全盛时期；壮年时期
adj. 夏季的
v. 过夏天
They summered at the seashore.
他们在海滨过夏。
Mary spent her last summer in summer school.
玛丽上个暑假上了暑期学校。
The hottest days of summer begin after the summer solstice.
夏天最热的日子在夏至之后开始。
The Last Rose of Summer
夏天的最后一朵玫瑰
Here comes the summer.
夏天到了。
solstice是什么意思：
n. 至，至日
This period will be punctuated by the June Solstice.
这个期间内还间隔有一次夏至。
The days begin to draw in after the summer solstice.
夏至之后白天开始变短。
The hottest days of summer begin after the summer solstice.
夏天最热的日子在夏至之后开始。
The winter solstice, theoretically should be the dead of a year, but it is usually not that.
理论上讲，冬至应是全年最冷的时刻，但通常并不是这样。
Another characteristic of sun-earth system is the gradual precession of the equinoxes and solstices along the orbit
日地系统的另一个特点是二分点和二至点沿轨道逐渐运动。
