Stuart glanced behind him. There came the sloop, boiling along fast, rolling up a bow wave and gaining steadily.

他又朝后面看了看，发现开过来一艘单桅船，她的船头在浪花里剧烈地摆动着。

The two robbers issued forth with Oliver between them. Barney, having made all fast, rolled himself up as before, and was soon asleep again.

两个强盗带着奥利弗走了出去。巴尼吃饱了，像以前一样把自己卷起来，很快又睡着了。

And then just one more little thing on terms of in terms of maintaining your gear. Obviously tire pressure has a massive effect on how fast you roll and also the quality of your tires.

此外，还有一件关于保养装备的小事。很明显，轮胎气压对滚动速度和轮胎质量都有很大影响。