1、The boat glided effortlessly across the lake, its oarless design allowing for smooth navigation.
这艘船毫不费力地在湖面上滑行，它无桨的设计使得航行更加平稳。
2、The oarless rowing technique requires careful coordination and balance to maintain speed and direction.
无桨划船技术需要仔细的协调和平衡，以保持速度和方向。