卵上微小的突起物也许像通气管一样帮助呼吸。

The delicate projections may aid, like snorkels, in respiration.

youdao

他快速地关闭了阀门，但他的一只手不小心被一个尖锐突起物划伤了。

He quickly shut the valve, but one of his hand was hurt by a spine carelessly.

youdao

然后他们把头部，就在嘴巴上面，的突起物作为诱捕他们的猎物的饵。

'they then use a protrusion on their heads, just above their mouths, that they use as a lure to catch their prey'.

youdao