It must be magnificent to be here in summertime .

此地在夏季想必是很壮丽堂皇的。

Summertime is supposed to be fun , leisurely , carefree .

夏季应该是充满乐趣的，悠闲的，无忧无虑的。

Summertime reading is about escaping from the real world .

夏日阅读通常是为逃离现实世界的。

Mars 's seasons last roughly two seasons on earth ; it is now summertime in the southern martian hemisphere .

火星的季节可粗略地分成地球上的两个季节；它的南半球此时处于夏季。

But the rate of snow and ice melting varies considerably , so changes in ice mass come largely from changes in summertime melt .

但是冰雪融化速率的（季节）变化极大，造成冰层总量变化的绝大部分来自夏季冰层的融化。