From late spring through summer, it is rainy and hot; from fall through winter, it is cooler and dry.

春末和夏季，这里多雨而炎热；秋冬季节，这里凉爽而干燥。

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"In the spring, it's trees; the summer, grasses; and fall, weeds." Being stuck indoors all winter also may cause trouble for those allergic to dust and pet dander, he adds.

“春天时，过敏原往往是树，夏天就是草地，秋天就变成杂草了，”他还补充道，整个冬天都待在家里的人也会因为灰尘或者宠物毛屑而感染过敏。

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Although the seasonal equinoxes and solstices seem to divide the year into four equal parts, when you count the days of what we officially call winter, spring, summer and fall, each season is different, says Bing Quock, acting chairman of the Morrison Planetarium at the California Academy of Sciences.

NPR: Not All Seasons Are Created Equal

Notably, every 18.6 years, during the northern lunar standstill, the moonrise is aligned with the sites two rock pinnacles, as well as during the summer and winter solstices, and the fall and spring equinoxes.

WHITEHOUSE: The White House

Brands are no longer so carefully crafted, calculated and canned that we must plan in the fall, produce in the winter, launch in the spring, and maintain in the summer.

FORBES: Bodyform Paves The Way For 'Brand Improv'