All sailboats need a keel of board for this reason: the narrow, flat surface of the board or keel produces little drag when the boat moves forward but resists motion sideways.

所有的帆船都为了这个理由需要某种龙骨：狭窄平滑的龙骨表面对于帆船的前行几乎没有阻力，但却能很好抗拒侧移力。

youdao

When it was time for me to sail back to Cornwall, you came out and stood on a narrow rock, and we watched each other so far that only we two knew what was rock or boat or human.

当我不得不启程回康沃尔德时，你走了出来，站在一块窄窄的岩石上，我们远远地望着对方，远到只有我们才知道哪里是岩石哪里是船哪里是人。

youdao

Youth is a narrow boat, carrying their parents deep hope, which is helpless and sad moments.

青春是一条窄窄的小船，载着父母深深的希望，是无奈与悲伤的日子。

youdao