In this week's tennis rankings released by the Women's tennis Assocation Li Na has risen to number four in the world... a dream come true thirteen years after she wished it.

这周女子网球协会公布的网球排名中，李娜已经上升到世界第四名——这是她的梦想，13年后实现了。

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The doublet nature of this and other lines in the na spectrum indicates a doubling of the expected number of states available to the valence electron.

钠光谱中的这条线以及其它线的双重性指出预期价电子可用的状态数是双重的。

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Given na 2d grid map of '1's (land) and' 0's (water), count the number of islands.

给定的一个二维网格的地图(1(陆地)和0(水))，计数岛的数量。

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World number two Na Yeon Choi of South Korea was in a five-strong group on five-under.

CNN: Tseng has company in battle for first women's major