tugs 拖船
- Special tugs now usher tankers in and out of Valdez to the open sea.
现在,进出瓦尔迪兹港的油轮由特别的拖船引导。 - It tugs at your hand, moving forward, backward, left and right to offer cues on direction and keep drivers from being distracted.
它拖船在你的手,前进,后退,左,右方向上提供线索,防止司机分心。 - Scientists think that this speed coupled with the planet's heft yields strong gravitational tugs that can alter the planets orbit.
科学家们认为这个速度加上行星的重量屈服于强大的重力牵引力,可以改变行星的运行轨道。
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