n.
船头的三角帆
n.
(起重机的)铁臂
vi.
(马等)逡巡不前;后退
vi.
畏缩不前[(+at)]

As the boat approached we could see its jib more clearly.
船开过来时,我们可以更清楚地看到船头的三角帆。

My horse jibbed before the pond.
我的马在水塘前逡巡不前。