tip-in

The cart stopped suddenly, tipping its load off in the middle of the road.

马车突然停下来, 车上的货滑落到路中间。

Wedge-tailed Shearwater is a very lazy shearwater and tends to stay close to the surface of the water (apparently they trail their wing tips in the water).

长尾水剃鸟是种很懒惰的水剃鸟，倾向贴紧水面飞行（他们的翼尖很明显的拖曳在水面上）。

All the pictures in the book were tipped in carelessly and are beginning to come loose.

这本书里所有的插图都贴得不仔细, 现在都开始脱页了。