1.pivot v. 以……为中心；（使）在枢轴上旋转（或转动）

例句：The boat pivoted on its central axis and pointed straight at the harbour entrance.
小船原地掉过头来，直指海港入口.T-.y[jrJo%。

2.vehicle n. 交通工具；车辆；（实现目的的）工具，手段，媒介

例句：The red traffic light indicates that every person and vehicle must stop.
红色信号灯表示人和车辆不能通行^dTt_#t.^Cr=XMc]fe4f。