We make the ship sailalong the smoothed route to result smooth track.
平滑航线后使船舶沿其航行，使船舶产生平滑的航迹。
2
Life is like a boat which is sailing in a big sea, lf it doesn't sailalong, the arranged direction, it won't get to other side of the sea, if it meets a windstorm, it may sink.