Ornamentals can be used to mark the border of a property or to provide privacy from neighbors.

观赏植物可以用来标记房屋的边界，或者为邻里之间提供隐私空间。

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First they must mark the border, the longest in Africa.

首先，他们要划定边界，这将是非洲最长的边界。

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The Amu Darya and Pyanj rivers mark the border with Afghanistan.

阿姆河和菲尔尼甘河与阿富汗交界。

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James Tomsheck, who is with the U.S.Customs and Border Protection's Office of Internal Affairs, told Senator Mark Pryor that since October 2004, on corruption charges.

VOA: standard.2010.03.11

Dravid went past Allan Border's mark of 11, 174 runs in Test cricket, leaving him behind just team-mate Sachin Tendulkar, West Indies' Brian Lara and Australian skipper Ricky Ponting on the all-time scorer list.

BBC: India batsman Rahul Dravid passes Test runs landmark

To the north is the highest step, the majestic snow-capped mountains that mark the border with China.

BBC: Long-distance swimming in Nepal��s glacial mountain lakes

They mark the border between his immense forehead and a face that is wavering between concentration and indifference.

NEWYORKER: Labyrinth