You can start the navigation process by tapping on a colored icon showing travel time, either in the initial small bar at the bottom of the map, or on the info sheet.
无论是在最初的地图底部信息栏还是在信息页上，你都可以通过点击一个彩色的显示预计行程时间的图标来开始导航步骤。
A sound made by tapping on the hull of a shop will be reflected from the sea bottom, and depth of the sea at that point can be calculated.
在船体外壳上敲打发出的声音会从海底反射。通过测量敲打与接受回声的间隔时间，这一点的海底深度就可计算出来。
A sound made by tapping on the hull of a shop will be reflected from the sea bottom, and depth of the sea at that point can be calculated.
在船体外壳上敲打发出的声音会从海底反射。通过测量敲打与接受回声的间隔时间，这一点的海底深度就可计算出来。
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