If you take a bearing with a compass, you use it to work out the direction in which a particular place lies or in which something is moving.
PHRASE
清楚/不清楚所在方位;知道/不知道下一步怎么做
If you get your bearings or find your bearings, you find out where you are or what you should do next. If you lose your bearings, you do not know where you are or what you should do next.