把小船放在一个相交点上，同时把地平线放在靠近一条水平线的位置。

Place the boat on one of the intersections and also position the horizon near one of the horizontal lines.

youdao

把小船放在一个相交点上，同时把地平线放在靠近一条水平线的位置。

Place the boat on one of the intersections and also position the horizon near one of the horizontal lines.

youdao