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The northern flowering is mirrored by the grasslands of the southern hemisphere,
北方的開花季節跟南半球的草原互相呼應，
and nowhere is more impressive than on the veldt of South Africa.
天下最美麗動人的草原非南非的維爾德草原莫屬。
Not all temperate plains are so rich and colourful in the summer.
并非所有溫帶地區的草原在夏季都是如此五彩斑斕。
This is midsummer on the Tibetan plateau, the highest great plain in the world.
這是西藏高原的仲夏，世界上海拔最高的草原。
Despite the conditions, grass survives and in sufficient quantities
在這樣的環境里，依然生長著漫山遍野的草，
to support the highest of all grazing herds, those of the wild yak.
維系所有食草動物的生存需要。那些是野牦牛。
Even in summer, life is hard. Temperatures rarely rise above freezing and the air is thin.
即使在夏天，日子也并不好過。溫度幾乎總是在零下，空氣又非常地稀薄。
It's also exceptionally dry for one very big reason, the Himalayas.
而且這里又干燥異常，那是因為一個很大的原因，喜馬拉雅。
The great mountain range acts as a barrier, preventing clouds moving in from the south,
雄偉的山脈猶如一道高高的屏障，阻擋了從南飄來的浮云，
and this casts a giant rain shadow that leaves Tibet high and dry.
只在大地上投下了巨大雨影，西藏高原由此變得異常地干燥。
