气温上升发生在冬季和春季，而不是夏季。
The temperature increase has occurred during the winter and spring, not during the summer.
这是结束的冬季和春季的开始。
冬季和春季到对流层上层基本无水汽。
Winter and spring to the upper troposphere, almost no water vapor.
夏季，秋季、冬季和春季。
恩，你应该在冬季和春季去。那时天气很好，不算太热。
Mmm, you should go in winter or spring. The weather is nice then. It's not very hot.
恩，你应该在冬季和春季去。那时天气很好，不算太热。
Mmm, you should go in winter or spring. The weather is nice then. It's not very hot.
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