南非葡萄酒的发展已有相当长的时间。
South Africa has come a long way in the development of wine.
如此行为如不改变，南非短时间内控制艾滋病的几率为零。
Unless such behaviour changes, South Africa is unlikely to beat the disease any time soon.
研究人员花了10年的时间在南非研究兰花，在那里兰花种类繁多。
Researchers spent 10 years studying orchids in South Africa, where the flowers are particularly diverse.
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