Phoenix city since ancient times has been the areas inhabited by the Miao and Tujia.

凤凰古城自古以来就一直是苗族和土家族的聚居地区。

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That forests regulate water run-off, mitigating risks of flooding and drought, has been recognised since ancient times.

森林可以调节水的流失，从而降低洪涝和干旱的危险——这一点从古代起就被认识到了。

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Being strategically located, it has been an important trading hub since ancient times.

由于其战略位置，在远古时代，它就成为了一个重要的商贸中心。

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Sugarcane, native to South and Southeast Asia, has been used since ancient times to sweeten food and drinks.

FORBES: SGG Is A Sweet Buy

Of course tomb robbery has been going on since ancient times, but Kent Weeks, Professor of Egyptology at the American University of Cairo says the past two years have seen a dramatic increase in such crimes.

BBC: Egypt revolution brings golden age for tomb raiders

Japan administers the islands, but China says the island group has been part of Chinese territory since ancient times.

BBC: Apec summit: Clinton warns Asia leaders over disputes