Of course the letters represent the three directions - in this case - north, south and west.

当然这三个字母在这种情况下代表三个方向北、南和西。

youdao

Protection zone is located in the center of the island and spreads to the other three directions, besides reaching the sea in the west.

保护区位于岛的中央，向东、西、南三个方向伸展，其中西面延伸至海。

youdao

This is called a "right-handed" coordinate system because the thumb and first two fingers of your right hand can be used to represent the three directions.

这被称为“右手”坐标系统，因为你右手的大拇指、食指和中指可以被用来表示三个方向。

youdao

The designers started at Fiberlane, but the firm became defunct when it couldn't choose which of three directions to pursue.

FORBES: The God Box

Reports started coming in early on Saturday that thousands of troops had started moving towards the Taliban-controlled tribal belt from three directions.

BBC: Eyewitness: At the edge of war

You can see oil infrastructure, drill pads and pipelines in three directions.

NPR: ANWR Community Split on Oil Exploration