我们在阿拉斯加的海域看到了一群座头鲸。

We saw a pod of ___humpbacks in the waters off Alaska.

那位驼背的老妇人需要特殊的椅子来支撑她的背部。

The elderly woman with a ___humpback needs a special chair to support her back.

道路中间有一个隆起的小坡，汽车经过时会轻微颠簸。

There's a small ___humpback in the middle of the road that makes cars bounce slightly.