This exercise gives coaches a good indication of each oarsman’s boat-moving ability—and of the relative speed of combinations of rowers.

通过这个过程，教练可以大体得知船员的划船能力以及和其他组员组合后的相对速度。

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Now one sunshiny day the Doctor and Dab-Dab were walking up and down on the ship for exercise; a nice fresh wind was blowing the boat along, and everybody was happy.

一天，阳光明媚，医生和嘎嘎在船上走来走去锻炼身体，和煦的清风吹拂着船向前推进，大家都很高兴。

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Kaylee McIntosh, 14, from Fyvie, Aberdeenshire, drowned after becoming trapped under a boat during a training exercise in Loch Carnan in the Outer Hebrides in 2007.

BBC: Kaylee McIntosh

Kaylee was one of 34 cadets on the training exercise when her boat overturned.

BBC: Kaylee McIntosh and Major George McCallum

Armed commandos boarded the target vessel simultaneously from a boat and helicopter in a meticulously timed exercise.

BBC: NEWS | UK | Scotland | Glasgow, Lanarkshire and West | Prince joins Marines at Faslane