In fact, he is pointing at a cardinal direction that happens to be behind his back.
事实上,他所指的是一个恰好在他身后的主方向而已。
When it comes to direction or orientation, they speak strictly in cardinal directions.
在说方向或位置时,他们从来都精确地描述基本方向。
CAUTION: The following methods are NOT highly accurate and give only general cardinal direction.
注意:以下的方位判定方法只能指示大体方位,不能保证结果的精确性。
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