Inspecting and cleaning a hull takes HullSkater between two and eight hours, depending on the size and design of the ship.

检查和清理船体需要花费HullSkater两到八小时的时间，这取决于船只的大小和设计。

The leadership can also take some comfort from the fact that, despite much bad news, the nine polls taken since June 1st show the Tories leading Labour by between two and eight points.

尽管有很多坏消息，但自6月1日以来进行的9次民意调查显示，保守党领先工党2至8个百分点，这也让领导层感到欣慰。